Debugging with Fiddler: The Complete Reference from the Creator of the Fiddler Web Debugger

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Eric Lawrence, Jun 15, 2012 - Computers - 311 pages
Fiddler is a Web Debugging Proxy platform that monitors and modifies web traffic. This freeware tool enables developers, testers, and enthusiasts to inspect traffic, set breakpoints, and "fiddle" with incoming or outgoing data. Fiddler includes powerful event-based scripting, and can be extended using any .NET language. FiddlerCore, the core proxy engine underlying Fiddler, is available to integrate into any .NET application. In this book, you'll learn to fully exploit the power of Fiddler to debug traffic from virtually any web-related application, including Internet Explorer, Google Chrome, Apple Safari, Mozilla Firefox, Opera, and thousands more. You'll see how to debug HTTPS traffic, and use Fiddler with popular devices like iPhone/iPod/iPad, Windows Phone, and others. After exploring the hundreds of built-in features, you'll learn to extend Fiddler using the FiddlerScript engine or build your own applications atop the FiddlerCore class library.
 

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Contents

Origins
3
Getting Started
13
Fiddlers Main Menu
23
Fiddlers Toolbar
29
Application Hotkeys
36
The Timeline tab
44
The TextWizard
54
Retargeting Traffic with Fiddler
67
Traffic Differ
155
Session Archive Zip SAZ Files
163
Extending Fiddler with FiddlerScript
177
FiddlerScript and Automation Tools
183
Extending Fiddlers UI Menus
186
Extending Fiddlers UI Adding Columns to the Web Sessions List
192
Referencing Assemblies
199
Extending Fiddler with NET
207

Fiddler Options
77
Preferences
83
Memory Usage and Fiddlers Bitness
100
Fiddler and HTTPS
106
Overview
123
Headers
129
JSON
135
Overview
149
Sending Strings to the TextWizard
220
Overview
257
The FiddlerApplication Class
262
Troubleshooting
273
Command Line Syntax
280
Preferences
291
Index
307
Copyright

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About the author (2012)

Eric Lawrence (@ericlaw) is best known as the developer of the Fiddler web debugging platform, used by web professionals worldwide. Currently a Program Manager on the Internet Explorer team at Microsoft, Eric has developed web applications and browsers since 1999. He blogs at http: //blogs.msdn.com/b/Fiddler and http: //blogs.msdn.com/b/IEInternals. In addition to Fiddler, Eric develops and maintains the freeware tools at http: //bayden.co

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