Step 1: Enable developer mode
If you have never used your browser’s developer tools before, you just need to open them. In most cases a keyboard shortcut is all it takes, there is nothing to “enable” separately.- Chrome
- Firefox
- Edge
- Safari
Press
F12 or Cmd + Option + I (Mac) or Ctrl + Shift + I (Windows). Alternatively, right-click the page and select Inspect.Step 2: Open the Network tab and start recording
1
Open the Network tab
In the developer tools, switch to the Network tab.
2
Clear existing logs
Clear the list before you start the process. Click the no-entry icon (a circle with a diagonal line) at the top left of the panel, or use the shortcut
Cmd + K (Mac) or Ctrl + L (Windows). This way, the report will only contain the requests related to your issue.3
Start recording
Make sure recording is running. It’s usually active by default, shown by a red dot or circle at the top left of the panel. If it’s paused, click the icon to start it.
4
Enable Preserve log
Also enable the Preserve log option. This keeps all requests visible even if the page reloads in the meantime.

Step 3: Reproduce the affected process in PastaHR
Now navigate to exactly the process that is slow or not working, while the network recording is running. For example:- Open the application flow where it’s stuck
- Load the applications overview that responds slowly
- Trigger an action that shows an error (e.g. “Resend” on an application)
Step 4: Export the HAR file
Once the process has run through (or the error has occurred), you can export the recorded data.- Chrome
- Firefox
- Edge
- Safari
Right-click any request in the list, then select Save all as HAR with content. Save the file somewhere you’ll find it again.
.har file, usually to your Downloads folder by default.
Step 5: Send us the HAR report
Send the.har file along with a short description to our support team:
- What were you trying to do?
- What happened instead (slow, error message, no response at all)?
- What time did it happen?
If you’re seeing several different issues, create a separate HAR report for each one. This makes it much easier for us to match reports to problems.

