A minor change in the UA string override we send for m.youtube.com does the trick: the "Chromium" token needs to be changed to "Chrome". I.e. the new override rule becomes:
[/^https?:\/\/m\.youtube\.com\//, "Mozilla/5.0 (Linux; Ubuntu 14.04 like Android 4.4;) AppleWebKit/537.36 Chrome/35.0.1870.2 Mobile Safari/537.36"] -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu. https://bugs.launchpad.net/bugs/1415107 Title: Video stream for youtube videos doesn’t play on mobile devices Status in the base for Ubuntu mobile products: In Progress Status in Web Browser App: In Progress Status in webbrowser-app package in Ubuntu: In Progress Status in webbrowser-app package in Ubuntu RTM: In Progress Bug description: This seems to be a fairly recent regression, most likely due to a server-side change on m.youtube.com. On mobile devices (reproducible both on a Nexus 7 running vivid- proposed and a krillin running 14.09-proposed), playing a youtube video plays back audio only, not video. To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1415107/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp