When troubleshooting complex issues, it is sometimes necessary for our customer service team to obtain additional information about the network requests that are generated in your browser while an issue occurs. A customer service team member may request that you record a HAR file, or a log of network requests, while that issue is occurring and then provide that to them for further analysis.
Below are some instructions about how you can easily generate a HAR file using Google Chrome. If you do not already have Google Chrome installed, please download it here and install it .
The following instructions apply to Chrome. Instructions for Internet Explorer and Firefox are available here .
To generate the HAR file for Chrome
- Open Google Chrome and go to the page where the issue is occurring.
- From the Chrome menu bar select View > Developer > Developer Tools .
- From the panel opens at the bottom of your screen, select the Network tab.
- Look for a round Record button (
) in the upper left corner of the Network tab, and make sure it is red. If it is grey, click it once to start recording. - Check the box next to Preserve log .
- Click the Clear button (
) to clear out any existing logs from the Network tab. - Now try to reproduce the issue that you were experiencing before, while the network requests are being recorded.
- Once you have reproduced the issue, right click anywhere on the grid of network requests, select Save as HAR with Content , and save the file to your computer.
- Upload your HAR file to your ticket or attach it to your email so that we may analyze it.
Here is a brief animation showing this process:

Comments
3 comments
UPDATE:
The export as HAR is built-in since Firefox 41, you do not need to install Firebug and the NetExport extension.
Just show the network profiler toolbar through Menu > Developer > Network. Then reload the page. Right-click anywhere in the table and select the entry called Save all as HAR, select the destination file. You are done.
Firefox users need to take some additional action prior to capturing a HAR:
•Install the Firefox extension Firebug.
•Install the Firebug extension NetExport. ...
•Open the Firebug console using one of these methods: ...
•Navigate to the Net tab in Firebug console.
•Refresh the page to start capturing the traffic between the browser to the server.
While we recommend Chrome for this sometimes internal policy dictates the use of particular browsers. We will continue to try and update documentation to reflect all supported browsers.
where is the HAR file located. Everyone says send HAR File, but after your step of "right click save as HAR", I am lost trying to find it....
@James - I believe by default it will save to your "Downloads" folder, but you can set your downloads location in your Chrome settings (Chrome > Preferences > Advanced Settings > Downloads.)
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