9itish

Thanks for the clarification @qtwrk ??

Thanks @qtwrk ??

What is the difference between setting CNAME mappings to Proxied or DNS Only?

Hi @qtwrk ??

For some reason, the error only occurs when the name attribute of a form element is set to name="name". If I use a different name attribute value like name="first-name" or if I remove this element, the error disappears.

I have changed the value of the attribute. Maybe this error was unrelated to LiteSpeed.

Thanks.

When the page gives a 404, the response headers contain the following:

link: <https://mydomain.com/wp-json/>; rel="https://api.w.org/"

When the page loads properly, the response headers contain the following:

link: <https://mydomain.com/wp-json/>; rel="https://api.w.org/"
link: <https://mydomain.com/wp-json/wp/v2/pages/15431>; rel="alternate"; type="application/json"
link: <https://mydomain.com/?p=15431>; rel=shortlink

in this particular order. Does that help in figuring out the issue?

All other response headers are exactly the same.

Thanks.

• This reply was modified 4 years, 4 months ago by 9itish.

It started happening yesterday. The page was working properly before that. ??

I added ?LSCWP_CTRL=before_optm in the URL of both the pages. One where I fill the data and the second where I process the data. I still got the same 404 error on submission.

Thanks.

• This reply was modified 4 years, 4 months ago by 9itish.

I flushed the CDN cache, bypassed the CDN, purged the cache from LiteSpeed plugin but the error still persists.

Hi @qtwrk,

Here is my report number: CVQYBSXX.

I don’t think I have instant click enabled. Where is this setting? I will just check to be sure.

Here is my understanding of the situation so far. I hope it helps:

1. The page actually exists on the website. I can visit it by directly typing the URL in the address bar.

2. The page is supposed to handle some $_POST data from a form submitted on another page. However, it seems to give a 404 error whenever there is any actual $_POST data.

Thanks.

I have purged all the cache from the plugin and from the CDN as well. However, this does not resolve the issue.

Update:

I did some more research. It looks like the page keeps showing the 404 error if I reload it using the “reload” icon. I also get the error on using CTRL + F5 for fore refresh. However, if I go to the address bar and press enter it loads the actual webpage.

• This reply was modified 4 years, 4 months ago by 9itish.

I resolved the error by turning off JS Combine. However, I still wanted to combine the JS files to serve the in an optimum manner. Is there any way to only exclude specific files from JS Combine?

The problem lasted for 2-3 hours this time and pages started loading normally about half an hour after I posted my comment. I did not make any changes on my end this time.

Before that, when I originally started posting in this thread, it persisted for about 10-12 hours.

@qtwrk Yes, it started loading without any issues after I posted the comment here.

It seems to be appearing “randomly”. Here are all my response headers:

HTTP/2 304 Not Modified
x-powered-by: PHP/7.3.21
pragma: no-cache
x-frame-options: SAMEORIGIN
expires: Wed, 11 Jan 1984 05:00:00 GMT
cache-control: no-cache, must-revalidate, max-age=0
content-type: text/html; charset=UTF-8
etag: "143371-1599041845;br"
vary: Accept-Encoding
x-qc-cache: hit,private
date: Wed, 02 Sep 2020 10:19:07 GMT
server: LiteSpeed
x-qc-pop: AS-SG-61
alt-svc: quic=":443"; ma=2592000; v="43,46", h3-Q043=":443"; ma=2592000, h3-Q046=":443"; ma=2592000, h3-Q050=":443"; ma=2592000, h3-27=":443"; ma=2592000, h3-28=":443"; ma=2592000, h3-29=":443"; ma=2592000
X-Firefox-Spdy: h2

I will post my response headers again if the error pops-up in the future. ??

Thanks.

• This reply was modified 4 years, 6 months ago by 9itish.

Hi @qtwrk,

The 520 error has again started appearing on the website. Would it be possible for you to take a quick look and see what’s wrong?

I will try to keep the website in this state for a few hours. I hope you get this message before that. ??

Thanks.

Hi @qtwrk

The websites seem alright now. I was able to hit private QC cache for the webpage I visited.

If possible could you please explain, what caused this issue?

Thanks. ??

Hi @qtwrk

I have sent two reports from two domains reporting error 520 and 524.

The Report numbers are: VBGINODB for error 520 and CVQYBSXX for error 524.

I have also sent the domain name in the notes for both reports. ??

Thanks for the detailed answer @lclarke ??

I cleared all my doubts. You guys have awesome support.