Injected origin trial token

This page shows a simple example of injecting an origin trial token into a <meta> tag with the following JavaScript.

const otMeta = document.createElement('meta');
otMeta.setAttribute('http-equiv', 'origin-trial');
otMeta.setAttribute('content', 'TOKEN_GOES_HERE');
document.querySelector('head').appendChild(otMeta);

Open DevTools → Application → Frames → top → Origin Trials. You may need to press the "Refresh" button in DevTools to see the status.