Gmail not working on safari

Gmail had been working flawlessly on Safari for year until last week. It keeps saying that there are too many redirects and therefore will not open.

Gmail still works on every other browser/app I use but really frustrating when Safari is the main one I use on my mac.

I'm using safari 11.1.2

I know that Gmail recently had an upgrade but it still worked in safari a couple of weeks ago.

Anyone else with this problem?

Thanks