400 Bad Request Request Header Or Cookie Too Large nginx

Hi.

My WordPress website (backend) regularly throws this error

# 400 Bad Request

Request Header Or Cookie Too Large
nginx

Only after clearing cookies (what I don’t want to do every time) it works again.

This website of course is hosted on CF :grinning:

Any ideas how to solve this?

That sounds similar to the thread below. Most likely the cookies are just enough to go over what’s likely a 4K limit in your NGINX configuration.

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