I upgraded from PHP 5.6 to PHP-FPM 7.3 (with Apache 2.4.37). I am using CentOS Web Panel installation. Everything was working fine before this upgrade.
The major of my sites are running fine after this upgrade, but the sites that have a URL format with ".html" at the end of the URL are showing a "400 Bad Request: Your browser sent a request that this server could not understand.":
The URL with ".html" (as it was configured in Permalinks in WordPress) is not working: https://www.delepesoasuspesos.com/ahorro-e-inversion/1850-construir-en-tiempos-de-crisis.html Then I changed the permalink in WordPress without using ".html": https://www.delepesoasuspesos.com/ahorro-e-inversion/1850-construir-en-tiempos-de-crisis and it worked.
But what I need is to keep the permalink with ".html" in order to not affect the traffic and SEO. I tried to use a .htaccess redirect the URL to the same URL omitting the ".html" (How to link to pages without the .html extension?), but it did not work I think because the 400 bad request error appears first and then the .htaccess does not run.
I will appreciate any help you can provide me.
