Nginx upstream sent too big header while reading response header from upstream
I came accross a very strange issue while deploying a vagrant development box. The application that was shown properly in Safari, but gave a 500 when I opened it with Chrome.
I found the following error:
upstream sent too big header while reading response header from upstream
It says that the response header from fastcgi upstream is too big and Nginx can’t process it. I increased the Nginx buffers to fix this.
fastcgi_buffers 16 16k; fastcgi_buffer_size 32k;
You might also have this issue when running Nginx as a proxy, easy to fix:
proxy_buffers 8 16k; proxy_buffer_size 32k;
Thanks for reading
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