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While the Chrome team is trying to integrate FedCM into devtools, we suggest developers to use the following tools to debug network requests. | ||
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1. Open chrome://net-export from the URL bar. Select “Include raw bytes” and | ||
click “Start Logging to Disk”. Select a location to save the logs when prompted. | ||
<p align="center"> | ||
<img width="467" src="https://github.com/fedidcg/FedCM/blob/main/explorations/static/net-export/net-export-entry.png?raw=true"/> | ||
</p> | ||
2. Open the page that calls the FedCM API. e.g. https://webid-fcm.glitch.me | ||
<p align="center"> | ||
<img width="467" src="https://github.com/fedidcg/FedCM/blob/main/explorations/static/net-export/fedcm-1.png?raw=true"/> | ||
</p> | ||
3. Go through the FedCM flow to debug all network requests | ||
<p align="center"> | ||
<img width="467" src="https://github.com/fedidcg/FedCM/blob/main/explorations/static/net-export/fedcm-2.png?raw=true"/> | ||
</p> | ||
4. Stop the logging on chrome://net-export | ||
<p align="center"> | ||
<img width="467" src="https://github.com/fedidcg/FedCM/blob/main/explorations/static/net-export/net-export-stop.png?raw=true"/> | ||
</p> | ||
5. Load the logs into https://netlog-viewer.appspot.com/ | ||
<p align="center"> | ||
<img width="467" src="https://github.com/fedidcg/FedCM/blob/main/explorations/static/net-export/netlog-viewer-entry.png?raw=true"/> | ||
</p> | ||
6. Under `Events` from the left, filter the logs with `type:URL_REQUEST` | ||
<p align="center"> | ||
<img width="467" src="https://github.com/fedidcg/FedCM/blob/main/explorations/static/net-export/netlog-viewer-example.png?raw=true"/> | ||
</p> | ||
7. The network requests that were sent to different endpoints can be viewed | ||
individually. They also include the response that the browser has received. If | ||
raw bytes are selected from step 1, the detailed response such as name, token | ||
string etc. will show up on the right. |