Issue with Adding Authorized Domain to Firebase Project

[vinay-patel22]

I am trying to add the domain blog-mingle.onrender.com to the Authorized Domains list in my Firebase project, but I am encountering errors.

Error Logs

• Console: Error updating authorized domain list.
• Network Error: CORS error: xhr request failed.
• API Error: Error: Update failed. Status: 400 (Bad Request).

Steps Taken

Adding Domain via Firebase Console:

• a. I went to Authentication > Sign-in method > Authorized domains.
• b. Entered blog-mingle.onrender.com in the domain input box.
• c. When I clicked Save, the error message "Error updating authorized domain list" appeared.

I would appreciate assistance in resolving this issue. Could you please help me understand why the domain cannot be added, and if there is a specific requirement or fix that I need to address?