Streaming

Not sure what Chromium you are using. Under Bookworm I see:

Version 122.0.6261.89 (Official Build) Built on Debian , running on Debian 12 (64-bit)

One of the reasons I gave up with Barclays Bank share dealing service. "Update your browser"....

It worked on an ancient firefox in an XP virtual machine though.

There is I suspect something that uses javascript to interrogate the operating system to find out what platform you are running that goes something like this

switch (detected OS) case Windersl...blah case OSx...blah case IOS...blah case android ...blah default, "update your browser" and f*ck off.

And, since these days all websites are written using someone else's toolset, and in javascript. the numpties who put it together have no idea how to fix it anyway,.

Thanks to you both. I ended up updating from Buster to Bookworm. Buster had Chromium 92 and the userAgent spoof apparently wasn't fully working. (Netflix didn't complain about it, but HBO did.)

Bookworm's v. 122 works fine. I hadn't thought of updating Raspbian, so I guess HBO did me a favor. Bookworm seems to be snappier than Buster on the same hardware... Microsoft could learn something.

I noticed that Firefox in Bookworm now has the DRM option in the settings. Widevine for ARM64 in Firefox at long last? I haven't tested it.