How to Use Browser Developer Tools to Collect the X-Instart-Request-ID Header

All modern browsers contain some form of developer tools that enable you to view detailed information about the requests they make when loading a page and the responses that come back. Among many other things, you can easily view the HTTP headers for any request and response.

Viewing the response headers will enable you to find the X-Instart-Request-ID header to help Support troubleshoot issues you might be experiencing. This ID allows them to identify problem requests in the access logs and find out what occured.

This document describes how to use the tools in each of the most widely used browsers (Chrome, Firefox, Safari, Internet Explorer, and Opera) and platforms (Windows, Linux, and Mac) to find this header.

Chrome

Open the developer tools in Chrome by pressing Ctrl+Shift+I (on Windows or Linux) or Option+Command+I (on Mac), or by going to the hamburger menu in the upper right corner, selecting More tools, and then Developer Tools.

By default the tools will display in a vertical pane at the bottom of the browser window. You can drag the upper border up or down to display more or less of the pane. You can also click the Undock into separate window button on the right side of the pane's toolbar.

Select Network at the top of the tools pane. Load the page with the problem, then click on the problem request in the list on the left. A request details window opens to the right. Be sure that the Headers tab is selected. In the Response Headers section, you should see the X-Instart-Request-ID header:

Chrome developer tools window showing X-Instart-Request-ID

Firefox

Open the developer tools in Firefox by pressing Ctrl+Shift+I (on Windows or Linux) or Option+Command+I (on Mac), or in the Tools menu, select Web Developer, then Toggle Tools. Select Network on the Tools menu. Load the page with the problem, then click on the problem request in the list on the left. On the right, select Headers. In the Response headers section, you should see the X-Instart-Request-ID header:

Firefox developer tools window showing X-Instart-Request-ID

Safari

Safari has the quirk that you have to enable using its developer tools before you can access them. They are enabled if there is a Develop menu on Safari's menu bar. If it is not present, display it by going to Safari Preferences on the Safari menu (on Mac), or Preferences on the settings menu with the gear icon on the right side (on Windows). Select the Advanced button on the top of the dialog box, and check Show Develop menu in menu bar.

Open the developer tools in Safari by pressing Option+Command+I (on Mac) or CTRL+ALT+I (on Windows). Load the page with the issue, then select Show Web Inspector from the Develop menu. (Safari is a bit odd because on first launching, it does not open a normal web page, and Show Web Inspector on the Develop menu is greyed out until you go to a web page.) Reload the page, then click on the problem request in the list on the left. A request details window opens to the right. Be sure that the Resource tab above it is selected. Scroll down to the Response Header section, and you should see the X-Instart-Request-ID header:

Safari developer tools window showing X-Instart-Request-ID

Internet Explorer

Open the developer tools in IE by pressing F12, or select F12 Developer Tools in the settings menu with the gear icon on the right side. In the developer tools pane, select Network, and press F5 or click on the Enable network traffic capturing button on the top left of the pane. Now load the webpage with the issue, and highlight the problem request, then click on Go to detailed view, and select Response headers. You should now see the X-Instart-Request-ID header:

IE developer tools window showing showing X-Instart-Request-ID

Opera

Opera also requires that you enable using its developer tools before you can access them. They are enabled if there is a Developer tools item on Opera's main menu. If it is not present, it will instead have a Enable developer tools item. Click that and the tools are enabled.

Open the developer tools in Opera by pressing Ctrl+Shift+I (on Windows or Linux) or Option+Command+I (on Mac), or in the Developer menu, select Web Inspector. Select Network on the toolbar. Select Network at the top of the tools pane. Load the page with the problem, then click on the problem request in the list on the left. A request details window opens to the right. Select the Headers tab. In the Response Headers section, you should see the X-Instart-Request-ID header:

Opera developer tools window showing X-Instart-Request-ID