* fix(playback): escape commas in mpv header fields on the TS paths
PR #1321 fixed the comma truncation of --http-header-fields inside the
native embedded-mpv addon, but the same OPT_STRINGLIST parsing bites
three TypeScript call sites that join header fields with ',':
- external MPV CLI launch (--http-header-fields=...)
- external MPV instance reuse (set_property http-header-fields)
- embedded MPV frame-copy loadfile options (opt.http-header-fields);
the helper's %len% quoting protects only the option-list level, mpv
still stringlist-parses the value afterwards
The Stalker MAG user agent contains "(KHTML, like Gecko)", so strict
portals received a truncated X-User-Agent and rejected live streams
with HTTP 400 (#910). Escape backslashes and commas per field with the
same scheme as the native fix, via a shared util.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* test(playback): cover the reused-instance IPC header escaping
Review follow-up (Greptile on #1323): the regression coverage only
exercised the CLI spawn path. Capture the JSON IPC traffic of a second,
reused mpv launch and assert the escaped MAG user agent survives the
set_property http-header-fields transport, so later serialization
changes cannot silently reintroduce truncated headers. net is mocked
with a passthrough default because the VLC specs bind a real ephemeral
port via createServer.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Preserve current-program context and enabled actions in narrow channel rows while aligning loaded rows, skeletons, and virtual-scroll geometry across M3U, Xtream, Stalker, Favorites, and Recent views.
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