Google Chrome and Microsoft Edge (Chromium) are both based on the Chromium open source project. Download HAR files may be exported by various HTTP-related tools, such as Electron HAR, HttpWatch, HTTP Toolkit, but are typically exported by web browsers. In Chrome, hit the F12 key or Ctrl-Shift-I to launch Chrome's Developer Tools console. Chrome HAR files not loading. HAR files can contain sensitive data, so make sure you store these files securely. Can't get it to work with either drag-and-drop or cut-and-paste. Mark as spam. You can follow these steps: Open the page you want to inspect on Google Chrome. The following steps show how to use the developer tools, which are very similar in the two browsers. 9. The specification for the HTTP Archive (HAR) format defines an archival format for HTTP transactions that can be used by a web browser to export detailed performance data about web pages it loads. CTX275211 - Create a HAR file for Safari The resulting file is the HAR dump requested by the support engineer. Any idea what I'm doing wrong? 7. CTX275208 - Create a HAR file for Edge. You can record your HTTP session using the Network tab in Chrome's Developer Tools. JavaScript Errors 8. After reproducing the issue, right-click anywhere inside the Network pane and select 'Save as HAR with Content' from the drop-down actions menu. In Chrome, go to the page where the HTTP(s) URL Sequence needs to be monitored. In the Developer Tools panel, click on the Network tab; Check the Preserve log option At the top-right of your browser window, click the Chrome menu ... Now upload this HAR file in the Import HAR file page of Applications Manager to create the HTTP(s) URL Sequence monitor. ... Package the HAR file, console output, and screen recording in a compressed format like .zip, and share that with Microsoft support. Reply | Delete. One of the easiest ways to generate the HAR file is using Google Chrome. HAR files generated from the Chrome dev tools seem to have stopped loading. Reproduce your issue within the Chrome browser. CTX275206 - Create a HAR file for Internet Explorer. Toolset. Thanks, Dave. Send the HAR file as a follow up to your open ticket to support. The HTTP Archive format, or HAR, is a JSON-formatted archive file format for logging of a web browser's interaction with a site. An HTTP Archive (HAR) Viewer that mimics Chrome Developer Tools By default, the panel will open on the right side of the Chrome window. CTX275207 - Create a HAR file for Firefox. The common extension for these files is .har.. Start Chrome with remote debugging; Connect to Chrome on the debugging port with a websocket connection; Enable "Network" debugging, you can also clear cache, etc - see Network API. It is recommended to use Chrome to generate HAR files because it natively provides the Developer Tools to facilitate this. Posted by Dave Potts - Mar 16, 2016. CTX275204 - Creating a HAR file from your browser to share with support . Get a HAR file from Chrome. Go to the page where you're experiencing the issue. Most browsers support the format, including Google Chrome, Mozilla Firefox, Apple Safari, and Microsoft Edge and Internet Explorer. This will open a dialog allowing you to select where to save your HAR file. Chrome is bundled with a set of Developer Tools as covered in that link. Chrome Internet Explorer Firefox Viewing HAR files in Fiddler Chrome. How to generate a HAR file. To learn more about the Chrome's developer tools, you can head towards this link. Right click on the page and choose Inspect, or press Ctrl+Shift+C on your keyboard to open Chrome's Developer Tools. The good news is, you can construct the HAR file yourself without too much trouble - this is exactly what phantom.js does. 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