Hello. I have an application. But Fiddler doesn't capture all requests of my application. It doesn't capture few requests. But Fiddler works fine in browsers like Chrome and Firefox. I tried Wireshark for same application, and it captured the requests that Fiddler couldn't capture. And, these "uncaptured" requests are HTTPS. I have enabled HTTPS Decryption. I need full URL and response data of these requests. Can you help me please? I apologize for my English.
4 Answers, 1 is accepted
Hello Emre,
If possible please share a request that is not being captured by Fiddler so we could investigate further. Is the application using HTTP/HTTPS protocol to make its requests? Note that Fiddler will be able to capture only web traffic that does through HTTP, HTTPS, and FTP protocols.
Regards,
Nick Iliev
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Hello Nick,
Thanks for responding. I guess it uses HTTP/HTTPS protocol. Because Fiddler captures other requests of the appliction.
This the URL of that request; https://anonymouswebapi20190929061919.azurewebsites.net/api/games
I need response data, and Headers of applications request.
Hello Emre,
Indeed the request itself is successfully captured when executed through browser or via the Composer (it returns authentication error which is expected as I am not passing required credentials). So I guess it has something to do with the way your application is making the request. You might try to change the SSL/TLS version as discussed here. The Fiddler client provides options do that via the menu Tools > Options > HTTPS and from that point check the option to ignore certificate errors and then manually add the wanted version of the HTTPS protocols.
Regards,
Nick Iliev
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Thanks for your help, changing SSL/TLS version worked. But I guess application has some sort of Anti-Wireshark/Fiddler. It shutdowns itself when I open Fiddler. I will try to find a way to bypass it. It is not my own application by the way.