What Do I Do If the Browser Displays a Message Indicating that a Cross-domain Exception Occurs After CDN Is Enabled?
Symptom
The page is abnormal when a client accesses resources. The following figure shows the error information.
Possible Causes and Countermeasures
Some resources in the cross-domain request do not respond to the header Access-Control-Allow-Origin. In this case, configure the response header information on CDN. For details, see HTTP Header Settings (Cross-origin Requests).
- To prevent cross-domain errors caused by browser cache, clear browser cache after configuring Access-Control-Allow-Origin.
- If your domain name is an OBS bucket and CORS rules are configured on CDN, you also need to configure CORS on OBS.
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