fix(core): [CORE-25] read defaults without navigator

docs/compiled/artplayer.js

@@ -67,4 +67,4 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
-!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.Artplayer=e(),define(function(){return t.Artplayer})):(t="undefined"!==typeof globalThis?globalThis:t||self).Artplayer=e()}(this,function(){"use strict";function t(t){return t&&t.__esModule&&Object.prototype.hasOwnProperty.call(t,"default")?t.default:t}var e,r={exports:{}};var n=(e||(e=1,r.exports=function(){function t(e){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(e)}var e=Object.prototype.toString,r=function(r){if(void 0===r)return"undefined";if(null===r)return"null";var 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o===t}):e.toLowerCase().trim()===o))throw new Error("[Type Error]: '".concat(n.join("."),"' require '").concat(e,"' type, but got '").concat(o,"'"))}}function a(t,e,n){if("function"===r(e)){var o=e(t,r(t),n);if(!0!==o){var i=r(o);throw"string"===i?new Error(o):"error"===i?o:new Error("[Validator Error]: The scheme for '".concat(n.join("."),"' validator require return true, but got '").concat(o,"'"))}}}return o.kindOf=r,o}()),r.exports);const o=t(n),i="5.4.1";function a(t,e){let r=document.getElementById(t);r||(r=document.createElement("style"),r.id=t,"loading"===document.readyState?document.addEventListener("DOMContentLoaded",()=>{document.head.appendChild(r)}):(document.head||document.documentElement).appendChild(r)),r.textContent=e}const s=globalThis.CUSTOM_USER_AGENT??("undefined"===typeof navigator?"":navigator.userAgent),c=/^(?:(?!chrome|android).)*safari/i.test(s),l=/iPad|iPhone|iPod/i.test(s)&&("undefined"===typeof window||!window.MSStream),d=l||s.includes("Macintosh")&&"undefined"!==typeof navigator&&navigator.maxTouchPoints>=1,u=/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(s)||d,p="undefined"!==typeof window&&"undefined"!==typeof document;const f={properties:["audioTracks","autoplay","buffered","controller","controlLine truncated
+!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.Artplayer=e(),define(function(){return t.Artplayer})):(t="undefined"!==typeof globalThis?globalThis:t||self).Artplayer=e()}(this,function(){"use strict";function t(t){return t&&t.__esModule&&Object.prototype.hasOwnProperty.call(t,"default")?t.default:t}var e,r={exports:{}};var n=(e||(e=1,r.exports=function(){function t(e){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(e)}var e=Object.prototype.toString,r=function(r){if(void 0===r)return"undefined";if(null===r)return"null";var 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o===t}):e.toLowerCase().trim()===o))throw new Error("[Type Error]: '".concat(n.join("."),"' require '").concat(e,"' type, but got '").concat(o,"'"))}}function a(t,e,n){if("function"===r(e)){var o=e(t,r(t),n);if(!0!==o){var i=r(o);throw"string"===i?new Error(o):"error"===i?o:new Error("[Validator Error]: The scheme for '".concat(n.join("."),"' validator require return true, but got '").concat(o,"'"))}}}return o.kindOf=r,o}()),r.exports);const o=t(n),i="5.4.1";function a(t,e){let r=document.getElementById(t);r||(r=document.createElement("style"),r.id=t,"loading"===document.readyState?document.addEventListener("DOMContentLoaded",()=>{document.head.appendChild(r)}):(document.head||document.documentElement).appendChild(r)),r.textContent=e}const s=globalThis.CUSTOM_USER_AGENT??("undefined"===typeof navigator?"":navigator.userAgent),c=/^(?:(?!chrome|android).)*safari/i.test(s),l=/iPad|iPhone|iPod/i.test(s)&&("undefined"===typeof window||!window.MSStream),d=l||s.includes("Macintosh")&&"undefined"!==typeof navigator&&navigator.maxTouchPoints>=1,u=/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(s)||d,p="undefined"!==typeof window&&"undefined"!==typeof document;const f={properties:["audioTracks","autoplay","buffered","controller","controlLine truncated

docs/compiled/artplayer.legacy.js

@@ -67,4 +67,4 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
-!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.Artplayer=e(),define(function(){return t.Artplayer})):(t="undefined"!==typeof globalThis?globalThis:t||self).Artplayer=e()}(this,function(){"use strict";var t=Object.defineProperty,e=Object.defineProperties,r=Object.getOwnPropertyDescriptors,n=Object.getOwnPropertySymbols,o=Object.prototype.hasOwnProperty,i=Object.prototype.propertyIsEnumerable,a=(e,r,n)=>r in e?t(e,r,{enumerable:!0,configurable:!0,writable:!0,value:n}):e[r]=n,s=(t,e)=>{for(var r in e||(e={}))o.call(e,r)&&a(t,r,e[r]);if(n)for(var r of n(e))i.call(e,r)&&a(t,r,e[r]);return t},l=(t,n)=>e(t,r(n)),c=(t,e,r)=>new Promise((n,o)=>{var i=t=>{try{s(r.next(t))}catch(e){o(e)}},a=t=>{try{s(r.throw(t))}catch(e){o(e)}},s=t=>t.done?n(t.value):Promise.resolve(t.value).then(i,a);s((r=r.apply(t,e)).next())});function d(t){return 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n(t){return t.constructor?t.constructor.name:null}function o(t,e){var n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:["option"];return i(t,e,n),a(t,e,n),function(t,e,n){var s=r(e),l=r(t);if("object"===s){if("object"!==l)throw new Error("[Type Error]: '".concat(n.join("."),"' require 'object' type, but got '").concat(l,"'"));Object.keys(e).forEach(function(r){var s=t[r],l=e[r],c=n.slice();c.push(r),i(s,l,c),a(s,l,c),o(s,l,c)})}if("array"===s){if("array"!==l)throw new Error("[Type Error]: '".concat(n.join("."),"' require 'array' type, but got '").concat(l,"'"));t.forEach(function(r,s){var l=t[s],c=e[s]||e[0],d=n.slice();d.push(s),i(l,c,d),a(l,c,d),o(l,c,d)})}}(t,e,n),t}function i(t,e,n){if("string"===r(e)){var o=r(t);if("?"===e[0]&&(e=e.slice(1)+"|undefined"),!(-1<e.indexOf("|")?e.split("|").map(function(t){return t.toLowerCase().trim()}).filter(Boolean).some(function(t){return o===t}):e.toLowerCase().trim()===o))throw new Error("[Type Error]: '".concat(n.join("."),"' require 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+!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.Artplayer=e(),define(function(){return t.Artplayer})):(t="undefined"!==typeof globalThis?globalThis:t||self).Artplayer=e()}(this,function(){"use strict";var t=Object.defineProperty,e=Object.defineProperties,r=Object.getOwnPropertyDescriptors,n=Object.getOwnPropertySymbols,o=Object.prototype.hasOwnProperty,i=Object.prototype.propertyIsEnumerable,a=(e,r,n)=>r in e?t(e,r,{enumerable:!0,configurable:!0,writable:!0,value:n}):e[r]=n,s=(t,e)=>{for(var r in e||(e={}))o.call(e,r)&&a(t,r,e[r]);if(n)for(var r of n(e))i.call(e,r)&&a(t,r,e[r]);return t},l=(t,n)=>e(t,r(n)),c=(t,e,r)=>new Promise((n,o)=>{var i=t=>{try{s(r.next(t))}catch(e){o(e)}},a=t=>{try{s(r.throw(t))}catch(e){o(e)}},s=t=>t.done?n(t.value):Promise.resolve(t.value).then(i,a);s((r=r.apply(t,e)).next())});function d(t){return 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docs/compiled/artplayer.mjs

@@ -4304,7 +4304,7 @@ function createDefaults() {
     icons: {},
     cssVar: {},
     customType: {},
-    lang: navigator?.language.toLowerCase()
+    lang: typeof navigator === "undefined" ? void 0 : navigator?.language.toLowerCase()
   };
 }
 function resolveOption(input, defaults2) {

packages/artplayer/ARCHITECTURE.md

@@ -156,6 +156,16 @@ order. All subsystem assignments and mutable static assignments keep their origi
 order. bootstrap/browser.ts owns global publication, style injection and the deferred
 version log; server imports do none of those browser operations.
 
+option/defaults.ts can be read without browser globals: an absent navigator yields
+an own lang field with value undefined. It still reads browser language on each access
+and returns fresh nested containers. DefaultOption describes this unvalidated state;
+ResolvedOption keeps a required language after the existing validator succeeds.
+Do not treat optional chaining on an undeclared navigator as a presence check or
+weaken the validated I18nHost type. Regression entrypoints are test/options.test.js,
+test/types/options-source.ts, test/package/runtime.cjs and test/browser/options.spec.js.
+The installed fixture checks missing navigator on every Node, including newer versions
+that normally provide it. See refactor/changes/2026-09-13-CORE-25-defaults-ssr.md.
+
 option/runtime.ts is the compatibility boundary between old external callback
 declarations and internal module views. It keeps validated merge behavior, callback
 identity and runtime receivers; it does not wrap callbacks or assert the whole player

packages/artplayer/dist/artplayer.js

@@ -67,4 +67,4 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
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packages/artplayer/dist/artplayer.legacy.js

@@ -67,4 +67,4 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
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packages/artplayer/dist/artplayer.mjs

@@ -4304,7 +4304,7 @@ function createDefaults() {
     icons: {},
     cssVar: {},
     customType: {},
-    lang: navigator?.language.toLowerCase()
+    lang: typeof navigator === "undefined" ? void 0 : navigator?.language.toLowerCase()
   };
 }
 function resolveOption(input, defaults2) {

packages/artplayer/src/option/defaults.ts

@@ -1,7 +1,7 @@
-import type { ResolvedOption } from './types'
+import type { DefaultOption } from './types'
 import { isSafari } from '../utils/compatibility'
 
-export default function createDefaults(): ResolvedOption {
+export default function createDefaults(): DefaultOption {
   return {
     id: '',
     container: '#artplayer',
@@ -70,6 +70,6 @@ export default function createDefaults(): ResolvedOption {
     icons: {},
     cssVar: {},
     customType: {},
-    lang: navigator?.language.toLowerCase(),
+    lang: typeof navigator === 'undefined' ? undefined : navigator?.language.toLowerCase(),
   }
 }

packages/artplayer/src/option/resolve.ts

@@ -1,9 +1,9 @@
-import type { OptionInput, ResolvedInput, ResolvedOption } from './types'
+import type { DefaultOption, OptionInput, ResolvedInput } from './types'
 import validator from 'option-validator'
 import scheme from '../scheme'
 import { mergeDeep } from '../utils/property'
 
-export default function resolveOption<Input extends OptionInput>(input: Input, defaults: ResolvedOption): ResolvedInput<Input> {
+export default function resolveOption<Input extends OptionInput>(input: Input, defaults: DefaultOption): ResolvedInput<Input> {
   const merged = mergeDeep(defaults, input)
   merged.container = input.container
   // Keep the existing runtime validator. It checks the known schema, not extension data.

packages/artplayer/src/option/runtime.ts

@@ -5,7 +5,7 @@ import type { MediaSurface } from '../media/types'
 import type { PluginFactory } from '../plugins/types'
 import type { SettingItem } from '../setting/types'
 import type { UrlHost } from '../source/types'
-import type { OptionInput, ResolvedOption } from './types'
+import type { DefaultOption, OptionInput, ResolvedOption } from './types'
 import resolveOption from './resolve'
 
 interface RuntimeCallbacks<Host> {
@@ -20,7 +20,7 @@ interface RuntimeCallbacks<Host> {
 
 export type RuntimeOption<Host> = Omit<ResolvedOption, keyof RuntimeCallbacks<Host>> & RuntimeCallbacks<Host>
 
-export default function resolveRuntimeOption<Host>(input: OptionInput, defaults: ResolvedOption): RuntimeOption<Host> {
+export default function resolveRuntimeOption<Host>(input: OptionInput, defaults: DefaultOption): RuntimeOption<Host> {
   // The external declaration facade and internal module views describe the same
   // caller-owned callbacks. Do not wrap, clone or rebind their runtime identity.
   // All non-callback options still derive directly from the validated merge type.

packages/artplayer/src/option/types.ts

@@ -10,4 +10,8 @@ export interface ResolvedOption extends Omit<Required<OptionInput>, 'proxy' | 's
   thumbnails: Required<Thumbnails>
 }
 
+export interface DefaultOption extends Omit<ResolvedOption, 'lang'> {
+  lang: OptionInput['lang']
+}
+
 export type ResolvedInput<Input extends OptionInput> = ResolvedOption & Omit<Input, keyof OptionInput>

refactor/baselines/defaults-ssr-validation.json

@@ -0,0 +1,704 @@
+{
+  "schemaVersion": 1,
+  "task": "CORE-25",
+  "date": "2026-09-13",
+  "baseCommit": "4a299eb2d4d4123f2b81e086c19ccbfd23bf3c2b",
+  "change": "Guard the absent navigator binding before reading the existing optional language path",
+  "unit": {
+    "before": {
+      "passed": 9,
+      "failed": 1,
+      "error": "ReferenceError: navigator is not defined"
+    },
+    "afterFocused": 16
+  },
+  "ci": {
+    "passed": 2432,
+    "unit": 2033,
+    "engineering": 28,
+    "baseline": 371,
+    "seconds": 240.93
+  },
+  "package": {
+    "name": "artplayer",
+    "version": "5.4.1",
+    "archiveSha256": "9c33c718db08109be7572d8a6ba2201cd2d5a1e6bd0e8845d141f0e5238cc4a3",
+    "legacyTypeModes": 5,
+    "preciseTypeModes": 8,
+    "knownTypeBlockers": 0,
+    "knownRuntimeBlockers": 0,
+    "sourceCopiesRemovedBy": "ENG-12"
+  },
+  "runs": [
+    {
+      "node": "20.19.0",
+      "candidateChecks": 36,
+      "publishedChecks": 31,
+      "defaults": {
+        "historical": false,
+        "resolved": true,
+        "ownLang": true,
+        "langType": "undefined"
+      },
+      "publishedDefaults": {
+        "name": "ReferenceError",
+        "message": "navigator is not defined",
+        "historical": true,
+        "resolved": false
+      },
+      "file": "refactor/.cache/packages/run-DWeEeu/runtime-node-20.19.0.json",
+      "sha256": "2a80dc04c57c76fb0fa61da3bf8e59764264ebf5af67e9535b60000e8f4512d9"
+    },
+    {
+      "node": "22.12.0",
+      "candidateChecks": 36,
+      "publishedChecks": 31,
+      "defaults": {
+        "historical": false,
+        "resolved": true,
+        "ownLang": true,
+        "langType": "undefined"
+      },
+      "publishedDefaults": {
+        "name": "ReferenceError",
+        "message": "navigator is not defined",
+        "historical": true,
+        "resolved": false
+      },
+      "file": "refactor/.cache/packages/run-DWeEeu/runtime-node-22.12.0.json",
+      "sha256": "d0bf3dbbc8c050555d359b495b805f1353bdd7d53c96b42696581eeac6b88244"
+    },
+    {
+      "node": "24.21.0",
+      "candidateChecks": 36,
+      "publishedChecks": 31,
+      "defaults": {
+        "historical": false,
+        "resolved": true,
+        "ownLang": true,
+        "langType": "undefined"
+      },
+      "publishedDefaults": {
+        "name": "ReferenceError",
+        "message": "navigator is not defined",
+        "historical": true,
+        "resolved": false
+      },
+      "file": "refactor/.cache/packages/run-DWeEeu/runtime-node-24.21.0.json",
+      "sha256": "133cedb07f29ed324757aa5e7c492771ca3f1beb7b907323a271029e19c81ffc"
+    }
+  ],
+  "browsers": [
+    {
+      "entry": "source",
+      "passed": 30,
+      "file": "refactor/.cache/core25-browser/source/report.json",
+      "sha256": "828391f7973208461c3a68ab785ef2e87f5cd1ab468ff20c926c131e800eeb4a",
+      "rows": [
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: expanded option input preserves historical JS forms",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: expanded option input preserves historical JS forms",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: expanded option input preserves historical JS forms",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: expanded option input preserves historical JS forms",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: expanded option input preserves historical JS forms",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: expanded option input preserves historical JS forms",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242"
+        }
+      ]
+    },
+    {
+      "entry": "main",
+      "passed": 30,
+      "file": "refactor/.cache/core25-browser/main/report.json",
+      "sha256": "8a67e34409f89d02ffde591e3e00842ab94e3fd403ef985c1cc9055fc2e9c583",
+      "rows": [
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: expanded option input preserves historical JS forms",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: expanded option input preserves historical JS forms",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: expanded option input preserves historical JS forms",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: expanded option input preserves historical JS forms",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: expanded option input preserves historical JS forms",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: expanded option input preserves historical JS forms",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335"
+        }
+      ]
+    },
+    {
+      "entry": "legacy",
+      "passed": 30,
+      "file": "refactor/.cache/core25-browser/legacy/report.json",
+      "sha256": "e02ad726266d1524c329445d511d2481ef42a7071b5f8414b7e5720222090db9",
+      "rows": [
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: expanded option input preserves historical JS forms",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: expanded option input preserves historical JS forms",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: expanded option input preserves historical JS forms",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: expanded option input preserves historical JS forms",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: expanded option input preserves historical JS forms",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: expanded option input preserves historical JS forms",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: configuration errors occur before mounting and preserve allocation timing",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: container identity, partial defaults, custom fields and normal callbacks",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "chromium",
+          "browser": "153.0.8010.12",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "firefox",
+          "browser": "155.0",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "published: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        },
+        {
+          "project": "webkit",
+          "browser": "26.6",
+          "title": "candidate: language defaults follow the browser and explicit language still overrides",
+          "candidateSha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04"
+        }
+      ]
+    }
+  ],
+  "browserLimit": "Windows Playwright engines; not physical Safari or mobile devices",
+  "logs": [
+    {
+      "file": "refactor/.cache/core25-before.log",
+      "sha256": "db374872a1cdf5d0a11616d8286bd992a5dd2ca6c42b56128cf09ffa6db96e2c"
+    },
+    {
+      "file": "refactor/.cache/core25-focused.log",
+      "sha256": "afd16364ac51b390697f830a6c9c602315ab79ec0196c63b01219b45fd1c2301"
+    },
+    {
+      "file": "refactor/.cache/core25-lint.log",
+      "sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+    },
+    {
+      "file": "refactor/.cache/core25-package-final.log",
+      "sha256": "5f6aaf334f32a172b2a2be079b71ea0d9e3cb0c8d276c4678761b5e71bb8dd4e"
+    },
+    {
+      "file": "refactor/.cache/core25-ci.log",
+      "sha256": "fe6248a222bf1bf65cfe4cdee2d350ba4231187eeb1fd55e2f1d01ce0e124824"
+    },
+    {
+      "file": "refactor/.cache/core25-build.log",
+      "sha256": "8085c31783906a518aad707bd4b461a0947f756746c3636a0cc1416bfa91a963"
+    }
+  ],
+  "initialBuildFailure": "Vite implicit publicDir copy; independently fixed and committed as ENG-12",
+  "shippedArtifacts": [
+    {
+      "file": "packages/artplayer/dist/artplayer.js",
+      "sha256": "6dc8ca6d6eb34aa8a056cbc31328efd634530b3c5c60f0014cb7ce719fabc335",
+      "docsIdentical": true
+    },
+    {
+      "file": "packages/artplayer/dist/artplayer.legacy.js",
+      "sha256": "80f74a8a39df4baf64cc00c65d21cd57c011bfcdead0da38eea077fbc67c5c04",
+      "docsIdentical": true
+    },
+    {
+      "file": "packages/artplayer/dist/artplayer.mjs",
+      "sha256": "432e2b0ad92009a09743e020bf7c928c8b8f18a52496622b16259ec9ab20059f",
+      "docsIdentical": true
+    }
+  ],
+  "remoteActions": null,
+  "fullReleaseReady": false
+}

refactor/changes/2026-09-13-CORE-25-defaults-ssr.md

@@ -0,0 +1,49 @@
+# CORE-25 无 navigator 默认选项修复
+
+CI-01 的 Node 20 安装测试发现 Artplayer.option 在没有 navigator 时抛出 ReferenceError，
+旧 npm 5.4.0 和重构候选均复现。较新 Node 自带 navigator，原测试没有覆盖这个环境。
+本任务修复安全读取默认值，不改变浏览器构造、语言配置或公开声明。
+
+## 实现与类型边界
+
+option/defaults.ts 用 typeof navigator 检查全局绑定是否存在，再沿用原来的可选访问和
+小写转换。没有绑定或值为 null/undefined 时，返回的默认对象仍拥有 lang 字段，其值
+是 undefined；浏览器每次读取实际语言，显式配置的 lang 仍覆盖默认值。没有新全局对象、
+补丁或缓存，也没有引入旧浏览器不具备的 globalThis 依赖。
+
+完整检查进一步指出，原 ResolvedOption 错把未校验的默认语言标为必定存在。现在
+option/types.ts 增加私有 DefaultOption，只有 lang 可以为 undefined，其余嵌套默认值
+仍完整；resolve.ts/runtime.ts 接受这种输入，校验成功后仍返回原 ResolvedOption。
+原 validator 在缺失语言且未提供覆盖值时继续拒绝，不通过类型断言或弱化 I18nHost
+掩盖问题。公开 Option 本来就允许 lang 缺省，public/types 文件及消费者调用无需变化。
+
+## 验证
+
+- 新源码回归在修复前 9 项通过、1 项按预期失败；修复后相关 16 项通过，覆盖缺少绑定、
+  undefined/null、独立对象、实时语言读取、缺失语言校验失败与显式语言覆盖。
+- 内部类型反例确认未校验 lang 不能直接 toLowerCase，校验后仍是 string；核心严格检查通过。
+  首次完整检查发现的内部类型错误已修复并保留日志，随后完整 ci:check 2432 项通过
+  （2033 单元、28 工程、371 基线），不是忽略类型错误换取成功。
+- 同一干净 tarball 在 Node 20.19.0/22.12.0/24.21.0 各跑 36 项候选和 31 项发布观察，
+  实际 CJS/ESM/legacy 默认读取成功；发布版的精确 ReferenceError 继续单独保留。
+  严格 package:release 通过，五个旧类型与八个精确类型模式零诊断，当前夹具的 runtime blocker 为零。
+- Chromium/Firefox/Windows WebKit，对源码、安装 main、安装 legacy 各跑 30 项，共 90 项。
+  en-US/zh-CN 浏览器环境的默认值、实例语言、显式 fr 覆盖及后续默认读取保持原行为；
+  既有正常选项、失败构造和实际媒体 ready 回归同时运行，没有未处理浏览器错误。
+
+版本、逐项浏览器结果、实际 Node、产物与日志摘要见
+[验证记录](../baselines/defaults-ssr-validation.json)。Windows WebKit 不代表物理 Safari/移动设备。
+
+## 构建与关联修复
+
+构建时另外发现 Vite 把声明 public 源码复制进 dist。已由独立 ENG-12 提交 4a299eb2d
+修复，完整 21 库/文档构建通过；本任务在该提交后重新生成干净 tarball 并重跑三个 Node。
+浏览器使用的 JS 与最终 tarball、正常生成的 dist 和 docs 副本逐字一致，因此独立的
+源码复制清理没有使浏览器证据失效。正常 build artplayer 与 build:i18n 已重新通过。
+
+没有版本或依赖变化，没有手改 dist 内容。JS 改进仅作用于原先抛错的无 navigator 路径，
+旧浏览器语言与包入口保持兼容。CORE-DEFAULTS-SSR-01 关闭；三轮全项目复盘及其余
+生态/设备/远端 CI 门槛仍未完成，不能据此发布 npm。
+
+维护入口为包内 ARCHITECTURE.md。回退本提交会重新引入此 SSR 默认值缺陷；发布基线
+反例应保留。独立提交主题：fix(core): [CORE-25] read defaults without navigator。

refactor/ci-setup.md

@@ -79,7 +79,8 @@ summary.md 和 GitHub Job Summary，不依赖先前下载的 artifact 来判断
 
 本地验证与指纹见 [CI-01 记录](changes/2026-09-13-CI-01-matrix-summary.md)。
 三个 Node 的 Windows 安装证据及新发现见 [消费者记录](changes/2026-09-13-CI-01-node-consumers.md)。
-CORE-25 的无 navigator 默认选项缺陷尚未修复，严格 test:package:release 会因此失败。
+CORE-25 已修复无 navigator 默认选项缺陷，严格 test:package:release 的当前 core/chapter
+夹具已通过；此前的失败记录保留，见 [修复证据](changes/2026-09-13-CORE-25-defaults-ssr.md)。
 更早 Node 消费/最低工具环境、全生态安装矩阵和有证据的影响调度仍待 CI-01；CI-04 负责
 各系统远端运行、冷热缓存、失败/取消演练及 required check 设置。没有新增远端通过证据。
 

refactor/core-acceptance.md

@@ -54,9 +54,9 @@ ENG-PERF-01/02 的后续核心性能工作归 MOD-03，并在 REVIEW-01 重新
 
 CI-01 后续 Node 20 安装消费发现 CORE-25：静态 option 在没有 navigator 时抛出
 ReferenceError，发布 5.4.0 和当前候选均复现。较新 Node 的全局 navigator 掩盖了它。
-已新增独立修复任务与 REVIEW-01 前置，并使严格 package release 检查阻断。
-本核心阶段的历史完成记录不代表这个后续发现已修复，见
-[Node 消费者记录](changes/2026-09-13-CI-01-node-consumers.md)。
+已由 CORE-25 独立修复并验证三 Node 与三浏览器，严格 package release 检查恢复通过，
+见 [修复记录](changes/2026-09-13-CORE-25-defaults-ssr.md)。此前失败继续保存在
+[Node 消费者记录](changes/2026-09-13-CI-01-node-consumers.md)，历史阶段验收不替代后续发现的验证。
 
 - 各 PKG-*-01/05/06：完整发布基线、支持范围旧核心/新插件、新核心/旧插件、SDK/组合/分发；
   chapter 的本轮四组合不能代替所有包，也不能代替它自己的最终进度/质量/全屏组合任务。

refactor/plan.md

@@ -4,7 +4,7 @@
 
 基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 225 项，范围 22 个包及工作区/示例。
 
-状态：todo 87 / doing 16 / blocked 0 / done 122 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
+状态：todo 86 / doing 16 / blocked 0 / done 123 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
 
 前置依赖是启动条件；验收是完成条件。任务可以继续拆分，但不能复用或悄悄删除旧 ID。
 
@@ -132,7 +132,7 @@
 | CORE-23 | artplayer<br>检查并补齐键盘、焦点与可访问名称 | CORE-13, CORE-14, CORE-17, ENG-05, BASE-04 | 主要控件/设置/模式退出的键盘与焦点回归、名称和字幕可用性检查及必要兼容修正 | 保持旧快捷键和 DOM/CSS 钩子；真实浏览器验证，不以静态属性检查代替交互；处理 BASE-DOM-01 的主要控件 Tab 不可达，保留既有名称与快捷键 | H | done |
 | CORE-22 | artplayer<br>核心阶段完整验收 | CORE-21, CORE-23, PILOT-01, ENG-08, ENG-10, ENG-11 | 核心与旧插件的可自动化完整回归、资源/性能及明确外部验证缺口 | 核心自动化和公开差异处置通过；真实环境缺口链接包集成/REL 门槛，阶段完成不代表可公开发布 | H | done |
 | CORE-24 | artplayer<br>修复连续切源的播放意图继承 | CORE-22, PKG-AUDIO-04 | 连续切源保留原播放意图，同时尊重显式暂停与最新来源，回归旧/新 audio | 真实暂停状态的受控测试、重入/取消/失败/销毁、三引擎和 main/legacy 产物验证通过；不恢复过期来源的公开副作用 | H | done |
-| CORE-25 | artplayer<br>修复无 navigator 环境读取默认选项 | CORE-22, ENG-12 | 安全读取默认语言并保留浏览器已有默认值；实际 Node 与发布产物正反例 | 记录旧发布版 ReferenceError；候选在无 navigator 时可读默认选项，浏览器语言和公开类型不回归；不以补全局对象隐藏错误 | M | todo |
+| CORE-25 | artplayer<br>修复无 navigator 环境读取默认选项 | CORE-22, ENG-12 | 安全读取默认语言并保留浏览器已有默认值；实际 Node 与发布产物正反例 | 记录旧发布版 ReferenceError；候选在无 navigator 时可读默认选项，浏览器语言和公开类型不回归；不以补全局对象隐藏错误 | M | done |
 
 ## 5 包迁移：artplayer-plugin-chapter
 
@@ -562,5 +562,5 @@
 - PKG-TOOL-THUMB-03: [记录](changes/2026-09-13-PKG-TOOL-THUMB-03-input-checkpoint.md) [记录](baselines/thumbnail-input-checkpoint.json) [记录](changes/2026-09-13-PKG-TOOL-THUMB-03-lifecycle.md) [记录](baselines/thumbnail-lifecycle-validation.json)
 - PKG-TOOL-THUMB-04: [记录](changes/2026-09-13-PKG-TOOL-THUMB-04-runtime-types.md) [记录](baselines/thumbnail-runtime-types-validation.json) [记录](changes/2026-09-13-PKG-TOOL-THUMB-04-public-types.md) [记录](baselines/thumbnail-public-types-validation.json) [记录](changes/2026-09-13-PKG-TOOL-THUMB-04-emitter.md) [记录](baselines/thumbnail-emitter-validation.json)
 - PKG-FACTORY-01: [记录](baselines/factory-assignment-gaps.json) [记录](baselines/factory-compatibility-proposals.json) [记录](factory-compatibility-decision.md) [记录](changes/2026-09-12-PKG-FACTORY-01-decision.md)
-- CORE-25: [记录](changes/2026-09-13-CI-01-node-consumers.md)
+- CORE-25: [记录](changes/2026-09-13-CORE-25-defaults-ssr.md) [记录](baselines/defaults-ssr-validation.json)
 - ENG-12: [记录](changes/2026-09-13-ENG-12-library-public.md) [记录](baselines/library-public-validation.json)

refactor/progress.md

@@ -1,5 +1,19 @@
 # 进度与证据
 
+## CORE-25 无 navigator 默认选项修复完成
+
+defaults.ts 使用 typeof 保护不存在的全局绑定，保留浏览器语言小写、lang 自有字段及每次
+独立默认对象；构造仍只在浏览器执行。源码反例 9 过/1 失败，修复后定向 16 项通过。
+严格包检查通过，3 个 Node 各 36 候选/31 发布观察，候选默认选项问题清零；旧错误保留。
+三浏览器源码/main/legacy 各 30 项共 90 项通过，英语/中文默认语言与显式覆盖保持一致。
+完整本地 CI 2432 项通过（2033 单元、28 工程、371 基线）。三个正常构建与安装测试
+使用相同 JS 字节，docs 副本一致；公开声明、依赖和版本不变。
+生成时发现的 public 复制另由 ENG-12 提交 4a299eb2d 修复；最终干净 tarball 重新验证。
+见[变更](changes/2026-09-13-CORE-25-defaults-ssr.md)和[证据](baselines/defaults-ssr-validation.json)。
+225 项：123 done、16 doing、86 todo；202 风险，CORE-DEFAULTS-SSR-01 关闭。
+独立本地提交，不推送、不发布；全生态/CI-01/真实远端与最终复盘仍待完成。
+
+
 ## ENG-12 库声明源码复制修复完成
 
 CORE-25 构建期间发现 Vite 默认复制 core/public 到 dist；实际候选 tarball 含 37 个

refactor/risk-table.md

@@ -204,5 +204,5 @@
 | MULTI-SUB-ENTITY-01 | open / 已复现 | Vendored cue entity decoding retains semicolons after lt, gt and amp entities | PKG-MULTI-SUB-05 |
 | JASSUB-TYPE-01 | open / 已复现 | JASSUB declared required URLs, Promise methods and resize parameter order differ from actual historical behavior | PKG-JASSUB-04 |
 | JASSUB-EXPORT-01 | open / 已复现 | JASSUB historical CommonJS object.default changes to a direct factory in 1.1.0 | PKG-JASSUB-04, PKG-JASSUB-06 |
-| CORE-DEFAULTS-SSR-01 | open / 已复现 | Reading static defaults throws when navigator is absent | CORE-25 |
+| CORE-DEFAULTS-SSR-01 | resolved / 已复现 | Reading static defaults throws when navigator is absent | CORE-25 |
 | ENG-DIST-PUBLIC-01 | resolved / 已复现 | Vite copied authored declarations into library distribution | ENG-12 |

refactor/risks.json

@@ -4501,7 +4501,7 @@
       "id": "CORE-DEFAULTS-SSR-01",
       "title": "Reading static defaults throws when navigator is absent",
       "confirmation": "reproduced",
-      "status": "open",
+      "status": "resolved",
       "owners": [
         "CORE-25"
       ],
@@ -4513,7 +4513,12 @@
       ],
       "compatibleResolution": "Read navigator through a guarded global lookup while preserving browser language defaults and public declaration shape.",
       "closureCriteria": "Published failure remains explicit; source and actual installed candidate defaults work without navigator on selected Node versions and browser language behavior stays unchanged.",
-      "workspaceState": "Node 20.19.0 actual installed probe fails with ReferenceError: navigator is not defined. Published 5.4.0 and candidate 5.4.1 both reproduce under explicitly absent navigator on every selected runtime. CI-01 records this known failure, then compares default values under the same controlled en-US navigator; this is not a production fix."
+      "workspaceState": "Node 20.19.0 actual installed probe fails with ReferenceError: navigator is not defined. Published 5.4.0 and candidate 5.4.1 both reproduce under explicitly absent navigator on every selected runtime. CI-01 records this known failure, then compares default values under the same controlled en-US navigator; this is not a production fix.",
+      "resolutionEvidence": [
+        "refactor/changes/2026-09-13-CORE-25-defaults-ssr.md",
+        "refactor/baselines/defaults-ssr-validation.json"
+      ],
+      "resolutionRationale": "Candidate source and actual installed main/legacy/ESM defaults work without navigator on Node 20.19.0/22.12.0/24.21.0. Three-engine source/main/legacy browser cases preserve en-US/zh-CN defaults and explicit language overrides; historical failure remains exact. Strict package release now reports zero known runtime blockers for this fixture."
     },
     {
       "id": "ENG-DIST-PUBLIC-01",

refactor/tasks.json

@@ -4493,12 +4493,13 @@
         "CORE-22",
         "ENG-12"
       ],
-      "status": "todo",
+      "status": "done",
       "risk": "M",
       "deliverable": "安全读取默认语言并保留浏览器已有默认值；实际 Node 与发布产物正反例",
       "acceptance": "记录旧发布版 ReferenceError；候选在无 navigator 时可读默认选项，浏览器语言和公开类型不回归；不以补全局对象隐藏错误",
       "evidence": [
-        "changes/2026-09-13-CI-01-node-consumers.md"
+        "changes/2026-09-13-CORE-25-defaults-ssr.md",
+        "baselines/defaults-ssr-validation.json"
       ]
     },
     {

refactor/toolchain-setup.md

@@ -13,7 +13,8 @@
 使用 Node 24.21.0；CI-01 已在 Windows 的 20.19.0/22.12.0/24.21.0 上重装消费相同
 core/chapter tarball，见 [Node 记录](changes/2026-09-13-CI-01-node-consumers.md)。
 这不是在最低 Node 上完成仓库工具链的干净安装/构建测试，也不是发布包的最低 Node 声明。
-CORE-25 默认选项缺陷仍在严格发布检查中阻断；完整工具与消费范围由 CI-01 继续验证。
+CORE-25 默认选项缺陷已修复并通过相同三 Node 与严格打包检查，见
+[修复记录](changes/2026-09-13-CORE-25-defaults-ssr.md)；完整工具与消费范围由 CI-01 继续验证。
 
 ## 锁文件和依赖维护
 

test/browser/options.spec.js

@@ -1,5 +1,31 @@
 import { expect, test } from './fixtures.js'
 
+for (const locale of ['en-US', 'zh-CN']) {
+  test.describe(`default language ${locale}`, () => {
+    test.use({ locale })
+    for (const core of ['published', 'candidate']) {
+      test(`${core}: language defaults follow the browser and explicit language still overrides`, async ({ page }) => {
+        await page.goto(`/test/player.html?core=${core}&chapter=published`)
+        const result = await page.evaluate(() => {
+          const container = document.createElement('div')
+          document.body.append(container)
+          const { Artplayer } = window
+          const initial = new Artplayer({ container })
+          const observed = { browser: navigator.language, defaults: Artplayer.option.lang, instance: initial.option.lang }
+          initial.destroy()
+          document.body.append(container)
+          const explicit = new Artplayer({ container, lang: 'fr' })
+          observed.explicit = explicit.option.lang
+          observed.defaultAfterOverride = Artplayer.option.lang
+          explicit.destroy()
+          return observed
+        })
+        expect(result).toEqual({ browser: locale, defaults: locale.toLowerCase(), instance: locale.toLowerCase(), explicit: 'fr', defaultAfterOverride: locale.toLowerCase() })
+      })
+    }
+  })
+}
+
 for (const core of ['published', 'candidate']) {
   test(`${core}: expanded option input preserves historical JS forms`, async ({ page }) => {
     await page.goto(`/test/player.html?core=${core}&chapter=published`)

test/options.test.js

@@ -40,6 +40,55 @@ test('default values, keys and nested order match the published getter', () => {
   assert.deepEqual(Object.keys(current.Artplayer.option), Object.keys(published.Artplayer.option))
 })
 
+test('candidate defaults are readable without navigator and keep independent option containers', () => {
+  const descriptor = Object.getOwnPropertyDescriptor(globalThis, 'navigator')
+  try {
+    for (const mode of ['absent', 'undefined', 'null']) {
+      assert(delete globalThis.navigator)
+      if (mode !== 'absent')
+        Object.defineProperty(globalThis, 'navigator', { configurable: true, value: mode === 'null' ? null : undefined })
+      const first = current.Artplayer.option
+      const second = current.Artplayer.option
+      assert.equal(first.lang, undefined, mode)
+      assert(Object.hasOwn(first, 'lang'))
+      assert.notEqual(first, second)
+      assert.notEqual(first.subtitle, second.subtitle)
+      assert.deepEqual(first.plugins, [])
+      assert.equal(first.subtitle.onVttLoad('text'), 'text')
+      assert.throws(() => resolveOption({ container: '#player' }, first), /option.lang/)
+      assert.equal(resolveOption({ container: '#player', lang: 'en' }, first).lang, 'en')
+    }
+  }
+  finally {
+    if (descriptor)
+      Object.defineProperty(globalThis, 'navigator', descriptor)
+    else
+      delete globalThis.navigator
+  }
+})
+
+test('candidate defaults read the current browser language on each access without caching it', () => {
+  const descriptor = Object.getOwnPropertyDescriptor(globalThis, 'navigator')
+  try {
+    let language = 'EN-us'
+    Object.defineProperty(globalThis, 'navigator', { configurable: true, value: {
+      get language() {
+        return language
+      },
+    } })
+    for (const value of ['EN-us', 'zh-CN', '']) {
+      language = value
+      assert.equal(current.Artplayer.option.lang, value.toLowerCase())
+    }
+  }
+  finally {
+    if (descriptor)
+      Object.defineProperty(globalThis, 'navigator', descriptor)
+    else
+      delete globalThis.navigator
+  }
+})
+
 for (const [name, resolve, Artplayer] of [['published', oldResolve, published.Artplayer], ['workspace', resolveOption, current.Artplayer]]) {
   test(`resolved options preserve unknown fields, merge ownership and collection item identity: ${name}`, () => {
     const callback = () => {}

test/package/README.md

@@ -47,11 +47,12 @@ the actual child version. Reports and failure logs are `runtime-node-<version>.*
 the same package output directory. Old reports without source/toolchain fields must
 be rebuilt. CI restores canonical Node before running browser tools.
 
-CORE-25 remains an explicit defect: both published and candidate static defaults throw
-without navigator. The fixture tests that exact failure on every runtime, then uses an
-identical controlled language for default-value comparison and restores the global.
-`knownRuntimeBlockers=1` prevents strict release success; ordinary observation tests
-passing do not mean the defect is fixed. See [Node evidence](../../refactor/changes/2026-09-13-CI-01-node-consumers.md).
+CORE-25 fixed candidate static defaults without navigator. The fixture preserves the
+published ReferenceError while requiring candidate main/legacy/ESM defaults to succeed,
+then uses an identical controlled language for comparison and restores the global.
+The fixture now reports zero known runtime blockers; it is still only core/chapter
+acceptance, not full release readiness. See [the fix](../../refactor/changes/2026-09-13-CORE-25-defaults-ssr.md)
+and the earlier [Node evidence](../../refactor/changes/2026-09-13-CI-01-node-consumers.md).
 
 The optional core `artplayer/runtime` entry has eight additional strict consumer
 groups: TS 5.1.6 and 5.9.3 each check Node10 CommonJS, NodeNext CJS/ESM and Bundler.

test/package/runtime.cjs

@@ -189,10 +189,21 @@ const vm = require('node:vm');
   const defaultNavigator = Object.getOwnPropertyDescriptor(globalThis, 'navigator')
   try {
     assert(delete globalThis.navigator)
-    // CORE-25 tracks this reproduced published and candidate failure separately.
-    assert.throws(() => core.option, { name: 'ReferenceError', message: 'navigator is not defined' })
-    observations.defaultsWithoutNavigator = { name: 'ReferenceError', message: 'navigator is not defined', historical: !!expected.baseline, resolved: false }
-    check('SSR.defaults-missing-navigator-known-failure', true)
+    if (expected.baseline) {
+      assert.throws(() => core.option, { name: 'ReferenceError', message: 'navigator is not defined' })
+      observations.defaultsWithoutNavigator = { name: 'ReferenceError', message: 'navigator is not defined', historical: true, resolved: false }
+      check('SSR.defaults-missing-navigator-known-failure', true)
+    }
+    else {
+      const defaults = core.option
+      assert.equal(defaults.lang, undefined)
+      assert(Object.hasOwn(defaults, 'lang'))
+      assert.notEqual(core.option, defaults)
+      for (const Class of [esm.default, legacy.default, require('artplayer/legacy')])
+        assert.equal(Class.option.lang, undefined)
+      observations.defaultsWithoutNavigator = { historical: false, resolved: true, ownLang: true, langType: typeof defaults.lang }
+      check('SSR.defaults-without-navigator', true)
+    }
     Object.defineProperty(globalThis, 'navigator', { configurable: true, value: { language: 'en-US' } })
     observations.api = { static: shape(core), prototype: shape(core.prototype), emitter: shape(core.Emitter.prototype), factory: shape(chapter), defaults: JSON.parse(JSON.stringify(core.option, (_, value) => typeof value === 'function' ? '$function' : value)) }
     check('API.defaults-controlled-language', observations.api.defaults.lang === 'en-us')

test/types/options-source.ts

@@ -4,6 +4,11 @@ import resolveOption from '../../packages/artplayer/src/option/resolve'
 
 const input: Option = { container: '#player', url: 'video.mp4', subtitle: { encoding: 'utf-8' } }
 const resolved: ResolvedOption = resolveOption(input, createDefaults())
+const defaultLanguage: string | undefined = createDefaults().lang
+const validatedLanguage: string = resolved.lang.toLowerCase()
+void [defaultLanguage, validatedLanguage]
+// @ts-expect-error Unvalidated defaults may have no browser language.
+createDefaults().lang.toLowerCase()
 resolved.subtitle.onVttLoad(resolved.subtitle.url)
 resolved.thumbnails.column.toFixed()
 resolved.volume.toFixed()