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[Chromium] Prevent duplicated MSE placeholders (e.g. on Youtube).

This commit is contained in:
hackademix 2019-11-16 19:05:02 +01:00
parent a1afd19a0e
commit 1fc69298f5
1 changed files with 15 additions and 7 deletions
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16
src/content/media.js
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@ -67,10 +67,7 @@ if ("MediaSource" in window) {
} else if ("SecurityPolicyViolationEvent" in window) {
// Chromium
addEventListener("securitypolicyviolation", e => {
if (!e.isTrusted || ns.allows("media")) return;
let {blockedURI, violatedDirective} = e;
if (blockedURI.startsWith("blob") && violatedDirective.startsWith("media-src")) {
let createPlaceholders = () => {
let request = notify(false);
for (let me of document.querySelectorAll("video,audio")) {
if (!(me.src || me.currentSrc) || me.src.startsWith("blob")) {
@ -78,6 +75,17 @@ if ("MediaSource" in window) {
}
}
}
let processedURIs = new Set();
let whenReady = false;
addEventListener("securitypolicyviolation", e => {
if (!e.isTrusted || ns.allows("media")) return;
let {blockedURI, violatedDirective} = e;
if (blockedURI.startsWith("blob") &&
violatedDirective.startsWith("media-src") &&
!processedURIs.has(blockedURI)) {
processedURIs.add(blockedURI);
setTimeout(createPlaceholders, 0);
}
}, true);
}
}