Submitting the form will send the following values to the IdP:

actionhttps://login.microsoftonline.com/8855719a-fe71-47b7-ae61-253b9c5fa679/saml2
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
RelayState_e3da3d9d-6443-4e8b-9478-65a9e32f22e3