Fiddler: Difference between revisions
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Brian Wilson (talk | contribs) Created page with "Fiddler acts as a proxy, it runs on your Windows desktop and captures traffic going between your browser and a remote website so that you can see what is going on. I remember..." |
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Fiddler acts as a proxy, it runs on your Windows desktop and captures traffic going between your browser and a remote website so that you can see what is going on. | Ostensibly this page is about Fiddler but actually it's about debugging web connections. | ||
== What is Fiddler == | |||
It's a desktop app. Fiddler acts as a proxy, it runs on your Windows 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. | I remember trying it out a couple times at different jobs but nothing struck me as truly great about it. | ||
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I got as far as putting a proxy 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. | I got as far as putting a proxy 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. | ||
== 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. | |||
Revision as of 16:07, 24 March 2022
Ostensibly this page is about Fiddler but actually it's about debugging web connections.
What is Fiddler
It's a desktop app. Fiddler acts as a proxy, it runs on your Windows 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 a proxy 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.
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.
