hulk-yin opened a new issue, #13395: URL: https://github.com/apache/skywalking/issues/13395
### Search before asking - [x] I had searched in the [issues](https://github.com/apache/skywalking/issues?q=is%3Aissue) and found no similar issues. ### Apache SkyWalking Component OAP server (apache/skywalking) ### What happened Description: After initializing SkyWalking (client-js), the current interception logic replaces window.XMLHttpRequest with a function, not a class. This breaks the prototype chain, so other modules that patch or instrument XMLHttpRequest via its prototype will fail. They can't access or extend the prototype anymore. Related Code: (window as any).XMLHttpRequest = customizedXHR in skywalking-client-js/src/trace/interceptors/xhr.ts. ### What you expected to happen Expected Behavior: SkyWalking should preserve the prototype chain (e.g., by wrapping or subclassing XMLHttpRequest), allowing other modules to patch it as usual. ### How to reproduce Initialize SkyWalking. Try to patch XMLHttpRequest.prototype in another module. Patching fails. ### Anything else Suggestion: Consider alternative interception strategies to preserve prototype functionality. ### Are you willing to submit a pull request to fix on your own? - [x] Yes I am willing to submit a pull request on my own! ### Code of Conduct - [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@skywalking.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org