Client Initiated Backchannel Authentication(CIBA) - "the binding_message value has to be max 50 characters in length and must contain only basic plain-text characters without spaces"

Issue

• Sending a request to CIBA endpoint with spaces or a length higher than 50 characters, returns the error

  Raw

  {"error":"invalid_binding_message","error_description":"the binding_message value has to be max 50 characters in length and must contain only basic plain-text characters without spaces"}