Get browser-side troubleshooting details in a HAR file

Problem

New Relic Support requires additional troubleshooting details about what is happening on the browser side and you are not able to provide either an accessible URL or the source code for your page.

Solution

Based on your browser type, create a HAR (Http Archive) file for investigation, and send it to support.newrelic.com. The HAR file contains all information about network calls involved with a page during the recorded time period.

When recording the HAR file, use features on your site to generate the appropriate type of activity. For example, if you have AJAX problems, exercise the section of your page that makes AJAX calls.

Chrome

Google Chrome browsers come with the ability to generate a HAR file. Depending on your browser version, the path names may vary to open the console.

  1. From the Chrome menu (top right) , select Tools > Developer tools or More tools > Developer tools as applicable.
  2. From the console, select Network.
  3. Select the record icon.
  4. If applicable, select the Preserve log checkbox to save network transaction data.
  5. Before trying to reproduce the issue, select the clear icon to remove unnecessary header information.
  6. Navigate around your site to generate the type of traffic with problems.
  7. Wait a few minutes until the browser reports data to the New Relic collector.
  8. Save the captured information by right-clicking the transaction list at the bottom of the console and selecting Save as HAR with Content.
Firefox version 41.x+

Firefox version 41 or higher comes with the ability to copy the transactions to a HAR file.

  1. From the Firefox menu (top right) , select Developer > Network
  2. Select the Clear option (lower right corner of the Developer window) to remove unnecessary header information.
  3. Navigate around your site to generate the type of traffic with problems.
  4. Wait a few minutes until the browser reports data to the New Relic collector.
  5. Capture the information by right-clicking the transaction list in the console and selecting either Copy All As HAR to place the data in your buffer, or Save All As HAR to copy it to a file.
Other browsers

Currently Microsoft Internet Explorer, and Apple Safari do not provide a built-in HAR capture feature. Instead, use Chrome or Firefox V41.x or later, or contact New Relic Support for alternatives.

For more help

Additional documentation resources include Troubleshooting browser monitoring installation (troubleshooting tips for deploying apps that New Relic APM also monitors).

Discuss Browser monitoring in the New Relic Online Technical Community! Troubleshoot and ask questions, or discuss JavaScript error reporting or AJAX timing in detail.

If you need additional help, get support at support.newrelic.com.