Do you know what your web app is up to? Carl and Richard talk to Sam Basu and Rosen Vladimirov about the latest versions of Fiddler. The original Fiddler for Windows is a free tool, but the Progress team has written all new products in the Fiddler space that are cross-platform and designed to work with different groups of people. Fiddler is for developers, first and foremost, letting you see the messages passing between the browser (or other clients) and the server in HTTP and HTTPS. With the new products, you can also connect to SignalR and gRPC data! Then there are tools for tech support and even embedding capabilities into your applications.