What does this error mean?

The size of the request body exceeds the accepted limit.

Probable causes

Nginx/Apache.
PHP
WAF

Verification and resolution

Check file size.
control limits.
control PHP.

Precaution: Only add the necessary limits.

← Return to error codes

Quick diagnostic.

To diagnose HTTP code 413 in the Web domain, start with the following check: Check file size. Then check the result against this probable cause: Nginx/Apache. Save the context and time of appearance to compare behavior before and after correction. Priority level indicated: Average.