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“2855748#0: *2667239 upstream sent too big header while reading response header from upstream”
It used to be working once, but currently it only throws a “Gateway error” when I try to switch. I doubt that the server configuration is the culprit, as I have many differently configured servers and the server is everywhere the same. Or this tool requires some special configuration i have not encountered anywhere yet.
Any help or fix for this issue? Thanks in advance.