Nginx upstream sent too big header

Plesk Nginx

When I log in to a PrestaShop website, I get an error on a Plesk server.

On checking error login for the site in folder /var/www/vhosts/domain.com/logs/proxy_error_log, I found the following error message proxy_error_log:2020/11/25 19:41:41 [error] 1809#0: *39664 upstream sent too big header while reading response header from upstream, client: 59.92.71.53, server: tulivesi.com, request: “POST […]

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Nginx HTTP 414 request-URI too large

Nginx Web Server

On a Nginx server, when accessing a long url, i get error

To fix the error, edit

inside “http” section, find

Replace the line with

If your URL is very large, you may need to increase the 32k to higher or reduce the url length. Large url like this mostly happend […]

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