Proxy or Kill BaseResource
Mike asked me how we proxy connections from BaseResource. On 60esr, we used a patch for this. That patch was dropped during the rebase becaues I incorrectly thought I neutered BaseResource in the patch for #28125 (moved).
I think we're still safe, and we disable all places where BaseResource is used, but let's re-land this patch (or we should kill BaseResource connections), just so we're more certain the app isn't bypassing the proxy.