How To Generate A HAR File?

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How to generate a HAR file using different browsers: Chrome Firefox Internet Explorer Safari Edge


To generate the HAR for Chrome:

  1. Open Google Chrome and go to the page where the issue is occurring.
  2. Look for the Vertical ellipsis button (image.png) and select More Tools > Developer Tools.
  3. From the panel opened, select the Network tab.
  4. Check Disable cache.
  5. Look for a round Record button (image.png) in the upper left corner of the tab, and make sure it is red. If it is grey, click it once to start recording.
  6. Check the box Preserve log.
  7. Click the Clear button (image.png) to clear out any existing logs from the Network tab.
  8. Reproduce the issue that you were experiencing before, while the network requests are being recorded.
  9. Once you have reproduced the issue, in Chrome, click Download (image.png). Then save the file to the computer: Save as HAR with Content
  10. Upload your HAR file to the ticket or attach it to the email so that UiPath Support team can analyze it.


To generate the HAR for Firefox:
  1. Open Firefox and go to the page where the trouble is being experienced
  2. Select the Firefox menu (three horizontal parallel lines) at the top-right of the browser window, then select More Tools > Web Developer Tools
  3. The Developer Network Tools opens as a docked panel at the side or bottom of Firefox. Click the Network tab
  4. Select Persist Logs from the gear icon on the right and be sure there is a check next to it
  5. Check Disable Cache
  6. The recording autostarts when you start performing actions in the browser
  7. Once the issue is reproduced, see that all of the actions have been generated in the Developer Network Panel (should just take a few seconds), right-click anywhere under the File column, and click on Save all as HAR
  8. Save the HAR file somewhere convenient
  9. Upload the HAR file to the ticket or attach it to the email so that UiPath Support may analyze it.


To generate the HAR file for Internet Explorer:
  1. Open Internet Explorer and go to the page where the issue is occurring
  2. Press F12 on your keyboard (or click the gear icon > F12 Developer Tools)
  3. Click the Network tab
  4. Check Disable cache
  5. Check Preserve log
  6. Reproduce the issue that you were experiencing before, while the network requests are being recorded
  7. Once done click the Save button
  8. Give the trace a filename and click the Save button which will save it as a .har file or .xml file
  9. Upload the HAR file to the ticket or attach it to the email so that it can be analyzed.


How generate the HAR file for Safari:
Before generating the HAR file, ensure the Develop menu is visible in Safari.
  1. Open the Develop menu and select Show Web Inspector
  2. Click the Network tab and select Preserve log and Disable cache options
  3. Reproduce the issue
  4. Click the Export icon on the far right of the network tab and save the HAR file
  5. Send us the file via the support ticket.


To generate the HAR file for Edge:
Edge natively produces HAR files. For more instructions, see the instructions from the Microsoft website.
  1. Open the Network tool in F12 developer tools
  2. Click on the Network tab
  3. Check Disable cache
  4. Check Preserve log
  5. Reproduce the issue
  6. Once reproduced the issue, in Edge, click Download (image.png). Then save the file to the computer: Save as HAR with Content.

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