Today after upgrade Fiddler Classic to new version we got compilation error for our custom rules.
Fiddler version:
v5.0.20253.3311 for .NET 4.6.2
Built: Monday, March 31, 2025
64-bit AMD64, VM: 63.0mb, WS: 114.0mb
.NET 4.8 WinNT 10.0.22631.0
I don't see in release notes anything about FiddlerScript changes. So what need to be added now to resolve this issue?
Your options are to either use one of the .NET Framework's built-in JSON parsers, or pull in a library compatible with the original yourself (you'd need to compile to a DLL): https://github.com/ericlaw1979/FiddlerImportNetlog/blob/master/FiddlerImportNetlog/JSON.cs