Docs / Modifying Traffic
Breakpoints
Pause a request or response in flight and change it.
Breakpoints let you intercept matching traffic and edit it before it continues. A paused request opens the Debug window.
Add a breakpoint
- Right-click a request → Breakpoint, or open Tools → Breakpoints and add a rule.
- Choose a URL pattern and method, and enable Request, Response, and/or WebSocket interception.
When it pauses
- Edit request/response headers (add/remove/replace), body, or status code.
- Click Continue to send it on, or Abort to fail the request.
- Modifiers can also apply edits automatically without stopping.
Heads upBreakpoints require SSL decode for the host. Every pause has a 60-second auto-timeout so a forgotten breakpoint never hangs an app.