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zebra-report: deploy bare-constraints camera retry

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russell@unturf.com 2026-06-07 21:14:54 -04:00
parent 3b817799ad
commit e4493f292d
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1 changed files with 34 additions and 18 deletions
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52
zebra-report/zebra-spaces.html
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@ -4632,23 +4632,39 @@ async function sfuPublishCamera(){
logLine('err','camera open retry failed: '+(e2.name||'Error')+' — '+e2.message);
fsm.send('FAILED', { error: e2.message }); fsm.send('DONE'); return;
}
} else if (e.name === 'NotAllowedError'){
/* Firefox on Fedora/Wayland: NotAllowedError fires WITHOUT
* showing a permission prompt even when site permission is
* unset/removed (fox 2026-06-08 ticket 0002). That signature
* is firefox-canonical for "no prompt fired" — and one known
* cause is the constraints object: certain hardware + driver
* combos make Firefox reject {width/height/aspectRatio/frameRate}
* ideals as if they were a permission denial.
*
* Retry once with bare {video:true}. If THAT works, the
* elaborate constraints were the culprit. If THAT also fires
* NotAllowedError, it's a real permission denial — surface
* the recovery notice. */
logLine('', 'camera open retry: NotAllowedError → bare {video:true}');
try {
stream = await navigator.mediaDevices.getUserMedia({ video: true, audio: false });
logLine('', 'camera open recovered with bare {video:true} — firefox constraint misclassification');
} catch(e2){
logLine('err','camera open retry failed: '+(e2.name||'Error')+' — '+e2.message);
if (e2.name === 'NotAllowedError'){
const ua = navigator.userAgent || '';
const ff = /Firefox\//.test(ua);
showNotice(
ff
? 'Camera blocked by your browser. Click the lock icon in the URL bar → "Connection secure" → "More information" → Permissions, then change "Use the camera" to Allow. Reload and try again.'
: 'Camera blocked. Click the lock or camera icon in the URL bar and allow camera access for this site, then try again.',
'warn'
);
}
fsm.send('FAILED', { error: e2.message }); fsm.send('DONE'); return;
}
} else {
/* User-facing notice on the common "no prompt, instant fail" case.
* NotAllowedError fired without a prompt = the browser has a saved
* Block for this origin's camera permission. Tell the user how to
* unstick it — Firefox doesn't surface this in the URL bar after
* the block is saved; only by visiting site permissions does the
* user discover what's wrong. Ticket 0002. */
if (e.name === 'NotAllowedError'){
const ua = navigator.userAgent || '';
const ff = /Firefox\//.test(ua);
showNotice(
ff
? 'Camera blocked by your browser. Click the lock icon in the URL bar → "Connection secure" → "More information" → Permissions, then change "Use the camera" to Allow. Reload and try again.'
: 'Camera blocked. Click the lock or camera icon in the URL bar and allow camera access for this site, then try again.',
'warn'
);
} else if (e.name === 'NotFoundError'){
if (e.name === 'NotFoundError'){
showNotice('No camera detected. Connect a camera and try again.', 'warn');
} else if (e.name === 'NotReadableError'){
showNotice('Camera is in use by another application. Close the other app and try again.', 'warn');
@ -8145,8 +8161,8 @@ logLine('', 'ready — pick a handle, type a rendezvous code, enter the space');
<footer style="margin:2.2rem auto 0;font-size:0.65rem;color:#999;line-height:1.7;word-break:break-all;font-family:monospace">
<span id="pi-seal" style="color:#777;cursor:default;user-select:none" title="">page integrity</span> &nbsp;·&nbsp; built <span class="stamp-date">2026-06-08</span><br>
md5 <span class="stamp-md5">a7e7d90f4d74ae7a34163010520bc48e</span><br>
sha256 <span class="stamp-sha">91ec427fd1ce8c1d1dcd45dfba00fa9a685e23064e5234daee72e52638b09669</span><br>
md5 <span class="stamp-md5">dac485556cfbbfd960687ca80326869b</span><br>
sha256 <span class="stamp-sha">733bf1210df3b6fbd314fa4c22811823474d5e71ffef40ff5ccbc79de99c41b1</span><br>
<span style="color:#bbb">hashes are of this page with these two fields zeroed — to verify, blank them and re-hash</span><br>
<span style="color:#bbb">one self-contained file — <strong>save a copy</strong> and verify against these hashes; point at your own servers with ?signal= and ?turncred=, or <a href="host-your-own.html" style="color:#999">host your own community</a></span>
</footer>