[JS] Filter events based on their entire stack trace – Sentry Help Center

Issue

I have set denyUrls to filter out events, but it is only looking at the top entry in the stack trace, so it sends my events anyway.

Applies To

All SaaS Customers and Self-Hosted Users
Error Monitoring
Filtering Events

Resolution

You can use beforeSend, which will look at the event right before it is sent to Sentry. You can set up custom code that will traverse through the event's stack trace, and if it finds what you are looking for, it will drop the event. Here is an example code snippet:

beforeSend(event) {
  for (let i in event.exception.values[0].stacktrace.frames) {
    if (event.exception.values[0].stacktrace.frames[i].filename.match(/chrome-extension/g))
      return null;
    }
  return event;
},