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POST action turns into a GET, which is incorrect.
Using Apache2 to serve web pages.
Debian Linux 5.10.0-8-amd64 #1 SMP Debian 5.10.46-2 (2021-07-20) x86_64 GNU/Linux
The following appears in the access.log:-
127.0.0.1 - - [28/Jul/2021:15:17:42 +1000] "POST /scripts_php/memb_login.php HTTP/1.1" 302 314 "http://dev.webtest.info/htmlpages/login.html" "Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0" 127.0.0.1 - - [28/Jul/2021:15:17:42 +1000] "GET /scripts_php/memb_login.php HTTP/1.1" 200 499 "http://dev.webtest.info/htmlpages/login.html" "Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0"
The form method is POST and the action is to call a PHP script which expects a POST array. The "302 314" appears to be correct, but, a GET is returned immediately.
According to w3.org:-
Note: RFC 1945 and RFC 2068 specify that the client is not allowed
to change the method on the redirected request. However, most existing user agent implementations treat 302 as if it were a 303 response, performing a GET on the Location field-value regardless of the original request method. The status codes 303 and 307 have been added for servers that wish to make unambiguously clear which kind of reaction is expected of the client.
This has just started to occur after a recent upgrade to Firefox. It might be caused by the browser but there might be some other explanation or configuration setting that needs tweaking. Could somebody please help.