How do I get Fiddler to stop ignoring traffic to localhost?

Question

When using Fiddler to monitor HTTP Requests & Responses in Internet Explorer it ignores all traffic directed to http://localhost.

Answer 1

Windows XP:

Be sure to set to click the settings button for each of the items in the "Dial-up and Virtual Private Network settings" listbox in the "Connections" tab of the "Internet Options" control panel applet.

I noticed that Fiddler would stop using the "LAN settings" configuration once I connected to my VPN. Even if the traffic wasn't going through the VPN.

Answer 2

• Type ipconfig at the commmand prompt.
• It will give you your IPv4 Address
• Replace localhost with your IPv4 Address in the Url when hitting the service.

The traffic will show up in Fiddler under your computer's IP address.

Answer 3

Don't use localhost in the url!

• http://localhost:4200/myTestProject

---

Use like this:

• http://MyMachineName:4200/myTestProject
• http://ipv4.fiddler:4200/myTestProject

---

=>=> Click here for further information <=<=

Answer 4

make sure Monitor all connections is ticked. it does not work for me maybe port is diffren i need yo see httprequest to my site from gmail my site is on win xp and iis5(my own machine)

Answer 5

For Fiddler to capture traffic from localhost on local IIS, there are 3 steps (It worked on my computer):

1. Click Tools > Fiddler Options. Ensure Allow remote clients to connect is checked. Close Fiddler.

2. Create a new DWORD named ReverseProxyForPort inside KEY_CURRENT_USER\SOFTWARE\Microsoft\Fiddler2. Set the DWORD to port 80 (choose decimal here). Restart Fiddler.

3. Add port 8888 to the addresses defined in your client. For example localhost:8888/MyService/WebAPI/v1/

Answer 6

Use your local IP address (not 127.0.0.1) instead would work, such as 192.16.0.88 etc. Go to cmd.exe and type ipconfig and you will see it.