I’m trying to create a REST API Resource by connecting ReTool to Xero (accounting SaaS) using OAuth 2.0. Having configured the Authorization URL and suchlike I go to “Test OAuth integration”. I’m successfully taken to Xero, which confirms the scopes. I click “Allow access” and, once redirected to ReTool, shown the error:
Encountered an error: CSRF DETECTED.
How do I overcome this?