How to capture network traffic using F12 (Developer Tools) when Fiddler is not an option

Version 3
    Share This:

    This document contains official content from the BMC Software Knowledge Base. It is automatically updated when the knowledge article is modified.


    PRODUCT:

    Remedy AR System Server



    QUESTION:

    If you need to capture the HTTP traffic between a browser and a web server we usually go for Fiddler. However what can you do when Fiddler is not an option?


    ANSWER:

    Modern browsers include debugging tools that allow you to examine the page. They also allow you to capture the network traffic similar to Fiddler. Here's how you do this:

    Internet Explorer

       
    1. Open F12 Developer Tools. Either via the F12 keyboard shortcut or the browser's tools menu
    2.  
    3. Select the Network tab
    4.  
    5. Enable traffic recording, either via the F5 keyboard shortcut or the green arrow
    6.  
    7. Reproduce the problem
    8.  
    9. Check if traffic is recorded. If not, make sure recording is enabled
    10.  
    11. Stop recording (Shift+F5 or the red stop  button)
    12.  
    13. Save as XML file
       Firefox  
       
    1. Open Options Menu
    2.  
    3. Go into Web Developer Option and Select Network
    4.  
    5. Mark the Checkbox "Disable Cache"
    6.  
    7. Reproduce the problem
    8.  
    9. Click HAR - Save all as HAR
       Chrome  
       
    1. Open F12 Dev Console via the F12 keyboard shortcut
    2.  
    3. Select the Network tab
    4.  
    5. Record the data. If it's not enabled click on the record button
    6.  
    7. When done, right click and choose: Save as HAR with content and save the file (you don't need to select the sessions, it will save all the session currently displayed)
       -

     


    Article Number:

    000100250


    Article Type:

    FAQ/Procedural



      Looking for additional information?    Search BMC Support  or  Browse Knowledge Articles