Can't set headers after they are sent

If any of the request is getting timeout we are getting **'Can't set headers after they are sent'** error when we are returning response. To return response we are using **return response.serveJSON()** method . Is api server already returning response in case timeout? How to handle timeout?

Start by tracing the response.serveJSON() call in the timeout path and determine whether the API server has already sent a response. Confirm the expected behavior for timed-out requests and document or test handling that prevents a second response from being returned.

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