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Open a browser and open the Developer Pane by pressing F12
Go to [Network] and make sure [Preserve Log] is enabled
Go to [Console] and make sure [Preserve log] is enabled
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Once the error replicated gather the logs by right-click in the Console pane and click [Save as…]
Go to [Network] and press the down arrow to export the network traffic
How to Open .HAR files
To solve issues experienced by the end user, open the HAR file using Chrome Developer tools.
Go to the Network tab and drag and drop the HAR file to the network pane, which will open up the client history.