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Miguel Ángel
466ee08ffa
* fix(cli): serve project media with HTTP Range so validate reads WAV duration
The local static server used by validate/snapshot/layout answered every
asset request with a plain 200 and no Accept-Ranges header. Chromium treats
such resources as non-seekable, and for WAV that makes the media element
report `.duration` as Infinity no matter how long it buffers (readyState
reaches HAVE_ENOUGH_DATA but duration never resolves). The duration audit in
validate then emitted a spurious "Could not read the duration of N media
element(s) within the validate timeout" warning for a perfectly valid local
WAV, and a longer --timeout never helped because the value is never going to
arrive. MP3/MP4 carry duration in their container metadata so they were
unaffected.
Serve files with Range support (206 + Content-Range, plus Accept-Ranges on
the full 200) so the element is seekable. WAV duration now resolves, the
false warning is gone, and the genuine "media shorter than its slot" check
works for WAV for the first time.
* perf(cli): stream Range responses instead of buffering the whole file
serveFileWithRange read the entire asset with readFileSync and then sliced
it, so a 1KB Range of a 50MB MP4 still allocated the full 50MB per request.
Switch to statSync for the total size and createReadStream(filePath, { start,
end }) piped to the response, reading only the requested window. Behavior is
unchanged: 206 + Content-Range + Content-Length for a satisfiable range, 416
for an unsatisfiable one, Accept-Ranges advertised on every response, and a
plain 200 full-body stream when there is no Range header. writeHead is
deferred to the stream's open event so a failed open still answers 500, and
the fd closes on end/error. This benefits MP4 seek too, not just WAV duration.
Extend staticProjectServer.test.ts with an 8MB-file case that pulls a 4-byte
slice from deep inside and asserts the streamed bytes, Content-Range, and
Content-Length are correct.