Fiddler: Difference between revisions
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Ostensibly this page is about Fiddler but actually it's about debugging web connections. | Ostensibly this page is about Fiddler but actually it's about debugging web connections. When I say "Fiddler" I mean "Fiddler Classic". | ||
This is a great page: [https://rigorousthemes.com/blog/best-fiddler-alternatives/ Best Fiddler Alternatives]] | This is a great page: [https://rigorousthemes.com/blog/best-fiddler-alternatives/ Best Fiddler Alternatives]] | ||
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I got as far as putting '''mitmproxy''' on a Linux box and pointing my browser at it, but I can't remember why I did that. I just remember that it worked. See docker/mitmproxy on cc-testmaps. | I got as far as putting '''mitmproxy''' on a Linux box and pointing my browser at it, but I can't remember why I did that. I just remember that it worked. See docker/mitmproxy on cc-testmaps. | ||
It works amazingly well in fact. You have to install a cert in your '''Firefox''' browser, so that it trusts mitmproxy for HTTPS traffic. After that, you're good! Amazing. (Did I say that?) | |||
== HTTP headers == | == HTTP headers == | ||
Revision as of 23:54, 31 August 2022
Ostensibly this page is about Fiddler but actually it's about debugging web connections. When I say "Fiddler" I mean "Fiddler Classic".
This is a great page: Best Fiddler Alternatives]
What is Fiddler
It's a desktop app. Fiddler acts as a proxy, it runs on your Windows (or Mac or Linux) desktop and captures traffic going between your browser and a remote website so that you can see what is going on. I remember trying it out a couple times at different jobs but nothing struck me as truly great about it.
You can do pretty much the same thing with Wireshark, I think. Fiddler is just tuned for web whereas Wireshark is generic network data capture.
I got as far as putting mitmproxy on a Linux box and pointing my browser at it, but I can't remember why I did that. I just remember that it worked. See docker/mitmproxy on cc-testmaps. It works amazingly well in fact. You have to install a cert in your Firefox browser, so that it trusts mitmproxy for HTTPS traffic. After that, you're good! Amazing. (Did I say that?)
HTTP headers
I need to see them, but they are visible in Chrome.
- F12
- Network tab
- Reload the page, watch all the network activity
- Pick a line in the left pane
- Switch from Preview to Headers in the right pane, there you go.
