fix: Provide a fallback to GET request when HEAD request fails

[avelad]

Fixes #5959

[shaka-bot]

Incremental code coverage: 75.00%

[Robloche]

Thanks for the quick fix & merge.

Now, the HEAD request (don't know why there're 2 of them) is followed be a GET request.
But in my specific case, the response status is 302 Found, meaning that the resource has temporarily moved.
And it looks like the redirection is not followed:

If I manually enter the URL https://ntg-zeop-content.netgemplatform.net/api/channels?id=coeurocean&deviceId=1d46bbfc-ffa4-55e0-cc80-b4c9a8c92478209062a1&ip=52.166.120.253%3A4352 in my browser, the redirection is followed and the .m3u8 manifest is correctly downloaded.

What do you think? Is it really a redirection issue?

[Robloche]

@avelad Do you have any idea about my issue? Is it a problem on my side or in Shaka Player?

[Robloche]

OK, my bad. We forgot to set Access-Control-Allow-Origin on our server.
It's now done but the GET request is not mage any longer...
I still see the two 404 errors for the HEAD request, though.

[Robloche]

OK, once again it's on our side. HEAD request is not allowed on our server.
I asked someone to allow it.
When it's done, I'll check again and let you know...

[Robloche]

OK, with the following 3 things, everything now works correctly:

• your fix,
• the setting of Access-Control-Allow-Origin,
• allowing HEAD method.

Thanks a lot!