[omarroth]

You can watch 1080p if you set "dash" as your default quality in preferences, or by adding `&quality=dash` to the end of a video URL. The reason it isn't enabled by default is that it requires proxying streams, which is more bandwidth intensive[0].

0. https://github.com/omarroth/invidious/issues/34

[rasz]

You shouldnt need to proxy anything, there are in browser js muxers that can splice separate video/audio streams into one, or find jsvideo player capable of playing it directly.

[omarroth]

I would recommend reading the issue I linked for why it's necessary. JS needs special access to resources that can't be provided without proxying.

You can see this yourself in a DASH player[0] and testing with e.g. https://invidio.us/api/manifest/dash/id/CvFH_6DNRCY. It will fail with

> Access to XMLHttpRequest at 'https://r5---sn-ab5l6nzy.googlevideo.com/videoplayback' from origin 'http://reference.dashif.org' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

0. http://reference.dashif.org/dash.js/nightly/samples/dash-if-...