Tests that a POST request in a frame is handled correctly. If this test passes, you will see a page indicating a form was POSTed.

--------
Frame: '<!--framePath //<!--frame0-->-->'
--------
This page was requested with the HTTP method POST.

Parameters:

the-input = input value goes here
submitwithpost = Submit with POST

Http headers:

HTTP_CACHE_CONTROL = max-age=0
HTTP_CONNECTION = keep-alive
HTTP_HOST = 127.0.0.1:8000
HTTP_ORIGIN = http://127.0.0.1:8000
HTTP_REFERER = http://127.0.0.1:8000/navigation/resources/page-that-posts.html
HTTP_SEC_FETCH_MODE = nested-navigate
HTTP_SEC_FETCH_SITE = same-origin
HTTP_UPGRADE_INSECURE_REQUESTS = 1

============== Back Forward List ==============
        http://127.0.0.1:8000/navigation/post-frames.html
            http://127.0.0.1:8000/navigation/resources/page-that-posts.html (in frame "<!--framePath //<!--frame0-->-->")
curr->  http://127.0.0.1:8000/navigation/post-frames.html
            http://127.0.0.1:8000/navigation/resources/form-target.pl (in frame "<!--framePath //<!--frame0-->-->")
===============================================