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Computernerd22 : the question isn't whether or not it uses it, but at what point it kicks in (before or after credentials are submitted)

Would someone more knowledgable on the subject than Neg or...

Without having read the article, would I be correct in guessing that the method used is :
1) When user hits submit, send a 'blank' request for the https page
2) Fill in the blanks on the https page...

Check the source. There's a section in there named 'start login_module_shared'. Glancing through it, you can see that it's passing the login info to a https address.

<form style="display: inline;...