MediaWiki:YouTube.js
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// This could be replaced with https://www.mediawiki.org/wiki/Extension:YouTube, but it
// was easier to just implement it myself instead of asking & waiting for it to be added.
[...document.querySelectorAll(".youtube")].map((element) => {
const { videoId, ...attributes } = element.dataset;
const iframe = document.createElement("iframe");
iframe.setAttribute("width", 560);
iframe.setAttribute("height", 315);
iframe.setAttribute("frameborder", 0);
// As suggested by YouTube's embed copy.
iframe.setAttribute(
"allow",
[
"accelerometer",
"autoplay",
"clipboard-write",
"encrypted-media",
"gyroscope",
"picture-in-picture",
"web-share"
].join("; ")
);
iframe.setAttribute("referrerpolicy", "strict-origin-when-cross-origin");
iframe.setAttribute("allowfullscreen", true);
// Set the attributes from the data-* attributes, overwriting the default ones.
Object.entries(attributes).map(([key, value]) =>
iframe.setAttribute(key, value)
);
iframe.src = `https://www.youtube-nocookie.com/embed/${videoId}?rel=0`;
element.replaceWith(iframe);
});
