I followed many tutorials here and thanks to the community I was able to set up a LEMP stack, running on Debian 10 with Nginx 1.18, php 7.4.9, WP5.5.1 Multisite. Everything is working very well but one thing, which is driving me crazy. I have no errors and all the redirections work flawlessy but whenever i got into the admin page and i try to create a new site… it redirect to the very same page (like a refresh) and nothing happen. The url in the address bar is weird:
The same problem appears whenever i try to upload a plugin or a theme… blank page and that url:
And again… let’s try with a plugin! Err… NO, again a blank page and the strange duplicate url:
Here’s a closer look to the console POST INFO:
POST https://op.org/wp-admin/network/update.php?action=upload-plugin scheme https host op.org filename /wp-admin/network/update.php action upload-plugin
Yes! that’s cool. Let’s see what’s next.
REQUEST HEADER Host op.org Origin https://www.op.org
Seems legit, you know where you are. How do you think he’s going to answer to this?
HEADER ANSWER location https://www.op.org/wp-admin/network/update.php?action=upload-plugin?action=upload-plugin
Wait… there’s something wrong here… update.php?action=upload-plugin?action=upload-plugin Oh… there’s some sort of echo? a deaf client assistant-rewrite?
I’m hitting a wall here, I don’t know where to look for errors, there’s nothing in error_log. Php ini’s, fpm config and nginx blocks they all look just fine to me. What could it be? Please help me, I feel like my head’s about to explode.
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