Article - CS364981
After a ThingWorx Flow upgrade from 9.1 to 9.2/9.3 logo is continuously spinning
Modified: 30-Mar-2022
Applies To
- ThingWorx Platform 9.1 F000 to 9.3 F000
Description
- ThingWorx Composer is accessible and is working
- ThingWorx Flow is not opening, PTC logo is continuously spinning or is giving Error 504
- Using Developer Tools from any browser this error is returned:
- Access to XMLHttpRequest at 'https://xxx:<port>/Thingworx/Flow/customCss' from origin 'https://127.0.0.1' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource
- When running the ValidateFlowSetup everything is ok
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