Replay a browser request

When a site behaves differently from your saved requests, the fastest way to find out why is to send exactly what the browser sent. This guide uses Schemo Bridge to capture the call and Schemo to reproduce it.

1. Start Schemo, open Capture, and arm capture on the browser tab with the Schemo mark in the toolbar.
2. In the browser, do the action that makes the request, such as opening an order.
3. In Capture, find the request. Type part of its address in the filter, or select Errors if the call failed.
4. Select the row and open Request to compare what the browser sent with your saved request: the URL, the authorization and cookie headers, and the body.
5. Select Repeat. The request opens as a new tab with the browser’s method, URL, headers, and body.
6. Send it. If you get the same answer as the browser, the difference is in your saved request. Remove headers one at a time and send again to find the one that matters.
7. To keep the request, press Ctrl+S (Cmd+S on macOS) and choose a collection. Replace tokens and cookies with variables first, so the saved request does not hold a session that will expire.

Repeating a request calls the original API with the original credentials. For a request that creates or changes data, point it at a test environment before you send it.