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fix(descriptor): rebuild SDP that Firefox accepts; release v5.8.1

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Live cross-browser testing found three defects in the SBQ2 SDP template, all
invisible to Chrome and all fatal to Firefox.

The candidate lines omitted raddr/rport on srflx and relay candidates. RFC 8839
section 5.1 makes rel-addr and rel-port mandatory for non-host candidates even
though ICE never reads them; Chrome tolerates the omission and Firefox drops the
candidate. Relay-only connections to Firefox failed 0/8 against 8/8 for the
browser's own SDP. The STUN and TURN profiles hid it because a host pair
connected instead -- the relay candidates were never actually needed there.

The template also advertised ice-options:trickle without ever closing the
candidate set, though a descriptor is a complete one-shot set with no channel to
trickle over, and hard-coded the m= port and c= line to the 9 / 0.0.0.0 null
default candidate, which is the trickle convention for "nothing gathered yet".
Both are now correct: no trickle, an explicit a=end-of-candidates, and the most
publicly reachable candidate as the default.

All three are serializer-side and cost zero descriptor bytes; sizes are
unchanged at 98-149 bytes, QR version 6-8. Verified 48/48 across all 16
combinations of {Chrome, Firefox} squared and four network profiles, with every
relay-only pair now connecting over the relay.
This commit is contained in:
lockbitchat
2026-08-06 17:25:46 -04:00
parent 6e82cfcae2
commit fb959d7ca7
12 changed files with 207 additions and 42 deletions
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@@ -24,7 +24,7 @@
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<link rel="manifest" href="./manifest.json">
<link rel="icon" type="image/x-icon" href="./logo/favicon.ico?v=1786031423211">
<link rel="icon" type="image/x-icon" href="./logo/favicon.ico?v=1786051485967">
<!-- PWA Meta Tags -->
<meta name="mobile-web-app-capable" content="yes">
@@ -90,7 +90,7 @@
<link rel="apple-touch-startup-image" media="screen and (device-width: 744px) and (device-height: 1133px) and (-webkit-device-pixel-ratio: 2) and (orientation: portrait)" href="./logo/splash/splash_screens/8.3__iPad_Mini_portrait.png">
<!-- Apple Touch Icons -->
<link rel="apple-touch-icon" href="./logo/icon-180x180.png?v=1786031423211">
<link rel="apple-touch-icon" href="./logo/icon-180x180.png?v=1786051485967">
<link rel="apple-touch-icon" sizes="57x57" href="./logo/icon-57x57.png">
<link rel="apple-touch-icon" sizes="60x60" href="./logo/icon-60x60.png">
<link rel="apple-touch-icon" sizes="72x72" href="./logo/icon-72x72.png">
@@ -99,7 +99,7 @@
<link rel="apple-touch-icon" sizes="120x120" href="./logo/icon-120x120.png">
<link rel="apple-touch-icon" sizes="144x144" href="./logo/icon-144x144.png">
<link rel="apple-touch-icon" sizes="152x152" href="./logo/icon-152x152.png">
<link rel="apple-touch-icon" sizes="180x180" href="./logo/icon-180x180.png?v=1786031423211">
<link rel="apple-touch-icon" sizes="180x180" href="./logo/icon-180x180.png?v=1786051485967">
<!-- Microsoft Tiles -->
<meta name="msapplication-TileColor" content="#ff6b35">
@@ -183,7 +183,7 @@
<!-- Render-blocking JS is deferred: classic deferred scripts and module scripts
both execute in document order after parsing, so React still runs before the
app modules below, but the parser / first paint is no longer blocked. -->
<script defer src="config/ice-servers.js?v=1786031423211"></script>
<script defer src="config/ice-servers.js?v=1786051485967"></script>
<script defer src="libs/react/react.production.min.js"></script>
<script defer src="libs/react-dom/react-dom.production.min.js"></script>
<!-- Prism syntax highlighting (vendored, offline). Tokenizes code as TEXT only —
@@ -191,8 +191,8 @@
Its CSS is loaded async via load-async-css.js (not paint-critical). -->
<script defer src="libs/prism/prism.js"></script>
<!-- Critical, paint-defining CSS stays render-blocking (avoids FOUC / layout shift). -->
<link rel="stylesheet" href="assets/tailwind.css?v=1786031423211">
<link rel="icon" type="image/x-icon" href="/logo/favicon.ico?v=1786031423211">
<link rel="stylesheet" href="assets/tailwind.css?v=1786051485967">
<link rel="icon" type="image/x-icon" href="/logo/favicon.ico?v=1786051485967">
<!-- Preload only the fonts needed for first paint. fa-solid covers the bulk of UI
icons; fa-regular/fa-brands are loaded on demand by their CSS (rarely on the
first screen). Inter latin 400/700 cover body text and headings/buttons. -->
@@ -200,31 +200,31 @@
<link rel="preload" href="/assets/fonts/inter/files/inter-latin-400.woff2" as="font" type="font/woff2" crossorigin>
<link rel="preload" href="/assets/fonts/inter/files/inter-latin-700.woff2" as="font" type="font/woff2" crossorigin>
<link rel="stylesheet" href="/assets/fonts/inter/inter.css">
<link rel="stylesheet" href="src/styles/main.css?v=1786031423211">
<link rel="stylesheet" href="src/styles/animations.css?v=1786031423211">
<link rel="stylesheet" href="src/styles/components.css?v=1786031423211">
<link rel="stylesheet" href="src/styles/main.css?v=1786051485967">
<link rel="stylesheet" href="src/styles/animations.css?v=1786051485967">
<link rel="stylesheet" href="src/styles/components.css?v=1786051485967">
<!-- Non-critical CSS (FontAwesome ~102KB, Prism) loaded async — no longer blocks paint. -->
<script defer src="src/scripts/load-async-css.js?v=1786031423211"></script>
<script defer src="src/scripts/load-async-css.js?v=1786051485967"></script>
<noscript>
<link rel="stylesheet" href="/assets/fontawesome/css/all.min.css">
<link rel="stylesheet" href="libs/prism/prism.css">
</noscript>
<script defer src="src/scripts/fa-check.js?v=1786031423211"></script>
<script defer src="src/scripts/fa-check.js?v=1786051485967"></script>
<!-- Update Manager - система принудительного обновления -->
<script defer src="src/utils/updateManager.js?v=1786031423211"></script>
<script type="module" src="src/components/UpdateChecker.jsx?v=1786031423211"></script>
<script type="module" src="dist/qr-local.js?v=1786031423211"></script>
<script type="module" src="src/components/QRScanner.js?v=1786031423211"></script>
<script defer src="src/utils/updateManager.js?v=1786051485967"></script>
<script type="module" src="src/components/UpdateChecker.jsx?v=1786051485967"></script>
<script type="module" src="dist/qr-local.js?v=1786051485967"></script>
<script type="module" src="src/components/QRScanner.js?v=1786051485967"></script>
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<body>
<div id="root"></div>
<script type="module" src="dist/app-boot.js?v=1786031423211"></script>
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<script type="module" src="dist/app.js?v=1786051485967"></script>
<script defer src="src/scripts/pwa-register.js?v=1786031423211"></script>
<script src="./src/pwa/install-prompt.js?v=1786031423211" type="module"></script>
<script src="./src/pwa/pwa-manager.js?v=1786031423211" type="module"></script>
<script defer src="./src/scripts/pwa-offline-test.js?v=1786031423211"></script>
<link rel="stylesheet" href="./src/styles/pwa.css?v=1786031423211">
<script defer src="src/scripts/pwa-register.js?v=1786051485967"></script>
<script src="./src/pwa/install-prompt.js?v=1786051485967" type="module"></script>
<script src="./src/pwa/pwa-manager.js?v=1786051485967" type="module"></script>
<script defer src="./src/scripts/pwa-offline-test.js?v=1786051485967"></script>
<link rel="stylesheet" href="./src/styles/pwa.css?v=1786051485967">
</body>
</html>