Hi @utnalove,
it looks like you might have some issues with the sever configuration of HTTP2… All the assets/resources are not loading correctly.
I would suggest that you contact your hosting support for help on this issue, since probably similar issues occur for other plugins/assets?
Take care!
Hello,
I took some time to reply, because we were analyzing it.
Http2 is well on and it seems to work fine.
In wp-admin in the screens of other plugins, there are no errors related to other plugins.
The only errors are related to wp-mail-smtp.
For example everywhere I can see such error.
This file cannot be downloaded by the browser.
At the same time in the access.log there is a 444 error:
theipaddress - - www.example.com [08/Oct/2020:10:38:22 +0200] "GET /wp-content/pluginpath/wp-mail-smtp/assets/css/admin-bar.min.css?ver=2.4.0 HTTP/2.0" 444 0 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36" "-"
Hi @utnalove,
hmm… this is strange.
Our plugin’s assets (CSS and JS files) are not anything special, so I’m not sure why only these files are causing you issues?
The status code 444: https://httpstatuses.com/444:
> …close the connection without sending a response to the client, most commonly used to deny malicious or malformed requests.
I don’t have any HTTP 444 error experience and there were no other reports of these kind of errors. I still believe your server configuration is marking these files for whatever reason and they are prevented from being loaded…
I’m sorry I can’t be of more help.
Take care!
thank you for your help!
After searching and searching I found the root cause:
This rule in nginx:
location ~* (roundcube|webdav|smtp|http\:|soap|w00tw00t)
{
return 444;
}
Hi @utnalove,
I’m glad you found the source of this issue.
Thank you for sharing this with others, so they can check for this if they experience the same issue.
Have a nice day!
