Last week Grafana worked without any problems, but after the update to 8.3.5 I cannot log in anymore. In the login screen, after entering my username and password a message appeared: ‘Origin not allowed’. In the grafana.log file I see a line: lvl=eror msg="Failed to look up user based on cookie" lo…

Hello :wave: and welcome to the forum, @jaapd This is a known issue with 8.3.6. See this github issue for a workaround. tl:dr: try adding proxy_set_header Host $http_host; to your config above proxy_pass: Unable to Create/Save Dashboard after v8.3.5 Update …

After update to 8.3.5: 'Origin not allowed' behind proxy

Grafana Configuration

jaapd February 11, 2022, 3:30pm 3

Thanks, it works again!

1 Like

Origin now allowed

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After update to 8.3.5: 'Origin not allowed' behind proxy

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