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Title
Unable to access the OPTIONS in OWAError: HTTP 400 Bad Request -
Description
Setting up OWA through CAM/Defender. The OPTIONS links in OWA are not working at all.Send/receive emails, click the Calendar, Notes, Contacts, Tasks etc, all work, however, we can't use any of the options like change your password, or set an automatic reply. It works fine when we log directly into OWA (without the CAM Portal), but won't work with the 2FA via CAMS. We currently have the OWA App configured in CAM with "allow advanced path rewriting" and have taken out OWA string, that way we can use.
Receive the Error: HTTP 400 Bad Request . When we uncheck "allow advanced path rewriting" receive the Error: An unexpected error has occurred. Please contact your Cloud Access Manager administrator to check the logs for additional details. and the URL changes to _CAMProxy/Error.html
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Cause
The OPTIONS link such as the password change and settings in OWA are stored under the /ECP folder, rather than within /OWA. Since the URL had /owa at the end -
Resolution
Please remove the /owa path from proxy URL, so that it is a root-to-root mappingYou may also need to change the application portal link to have /OWA so that the user goes to OWA from the portal.