Twitch chromecast support is broken in the default flash player and has been for a long time. Since twitch was bought by Amazon they probably don't won't fix it. However, the HTML5 chromecast support does still work. When you use this bookmarklet, the stream will pause and a new twitch tab will open up where Chromecast support works. Just go to that tab and click the chromecast button.
- Option 1: If you trust this page, you can just drag this link to your bookmark bar: Twitch Chromecast
- Option 2: Generate the link yourself. Run this code (the console works fine) and use the resulting link in a bookmarklet:
var bookmarklet_js = "var channel_div = $("#broadcast-meta > div > div.channel > a.channel-name");
if (channel_div) {