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The Fiddler Everywhere 3.0 release is one we made a big splash about, mainly with the news about it now supporting HTTP/2. By supporting HTTP/2, Fiddler Everywhere allows developers to debug applications across Windows, macOS and Linux without the need for a complicated setup.

The network connections running on HTTP/2 can be reused, and you can quickly run requests from both HTTP 1.1 and HTTP/2. Unlike network connections using HTTP 1.1, those running on HTTP/2 can be reused for multiple resources. Developers can quickly inspect the HTTP/2 traffic, send HTTP/2 requests and execute and test requests from both protocol versions.

When it comes to performance, it is worth pointing out that since HTTP/2 runs both on the client and server-side, the data developers receive when running client requests is accurate and sorted out, saving them time for separating what they need from what they receive. Our release blog walks you through the HTTP/2 support feature and talks more about the difference in the protocol versions.

Getting started debugging HTTP/2 traffic is pretty straightforward. Here is a short step-by-step video for enabling HTTP/2 traffic capture. Right from the UI launch, you can be ready to go in under a minute.

The quick start video details the following for you:

  • Enable HTTP/2 Traffic in the UI of Fiddler Everywhere
  • Capture sessions and filter by protocol version or HTTP version column in Fiddler Everywhere 3.0
  • Fiddler Everywhere’s Inspector Tab and Composer Feature

About the Author

Eve Turzillo

Eve is a senior developer advocate at Progress and is enthralled in everything to do with web debugging and the world of network traffic. When not writing content or streaming, you can find her at your favorite developer events.

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