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

actionhttps://login.microsoftonline.com/ceee99fa-51dc-4b0e-b6b1-42b0d2747f0b/saml2
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
RelayState_1cebf902-064d-4f24-b577-8dbbd3553fd9