By default, LWP::UserAgent automatically follows redirects for any request except a POST. The redirect_ok() method controls this behavior:
This method is called by request() before it tries to
do any redirects. It should return a true value if a
redirect is allowed to be performed. Subclasses might
want to override this.
The default implementation will return FALSE for POST
request and TRUE for all others.
Recently I had to write a script which posted a form on a remote site, and then checked the text of the resulting page to make sure the post succeeded. Unfortunately, there was a redirect to that page.
First I tried a making a subclass with a new redirect_ok() that always returned 1. Unfortunately, LWP::UserAgent used a POST request for the redirect; the remote server returned a 405 error. I ended up writing a redirect_ok() which replaced the POST request object in @_ with a new one that did a GET instead. Ugly, but it worked!
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