WARP Issue When Logging Into Site

What is the name of the domain?

na

What is the error message?

Site has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.

What is the issue you’re encountering

Issue Logging In/Authenticating to Payroll Site with WARP enabled

What steps have you taken to resolve the issue?

Believe this is an issue related to SSL/TLS encryption. Attempted to include the domain in no inspect rule. Did not resolve.

What are the steps to reproduce the issue?

When users attempt to log in to a Payroll site, they are able to access the site itself. However, when they enter credentials and attempt to authenticate, the site hangs and eventually presents a generic error message. In the browser’s debug log, we see specifically the “No ‘Access-Control-Allow-Origin’ header is present on the requested resource” error. With WARP disabled or not connected, this issue does not come up.

Screenshot of the error

If it’s not being served or passed by from the origin host, you can add the missing Access-Control-Allow-Origin HTTP header by using Transform Rules → Modify Response Header as follows:

Helpful article with the step-by-step instructions how to create one: