@uliwitness @nickheer I've heard that it's a lot better but not really very matte when compared with actual matte displays.
@milend I didn't think it was a browser issue because it had also failed for me in Firefox, which I never use with Apple sites.
@pbur rdar://problem/20120754
Radar login problem fixed by Safari's "Clear History and Website Data.” Had previously deleted all the Apple cookies, which didn't help.