How to display localhost traffic in Fiddler while debugging an ASP.NET application?

Question

How do I display localhost traffic in Fiddler while debugging an ASP.NET application?

Answer 1

try using this:

http://ipv4.fiddler/folder

instead of

http://localhost/folder

this also works with ports

http://ipv4.fiddler:12345/folder

Here is link to fiddler documentation

http://docs.telerik.com/fiddler/Configure-Fiddler/Tasks/MonitorLocalTraffic

Answer 2

Checking the "Use PAC Script" in Fiddler Options -> Connections worked for me when using IIS Express within a corporate intranet.

Answer 3

For an ASP.NET web site project:

1) Right-click the project and select Property Pages
2) Select Start Options
3) Under the Server section, click the "Use custom server" and edit the Base URL by replacing localhost with your computer's name.

Answer 4

You should uncheck the checkbox:

Bypass proxy server for local addresses

Located at proxy configuration of Internet Explorer.

Answer 5

One of the possible solutions is remove the proxy settings in IE as follows.

       IE->Tools->Internet Options->Connections->Lan Settings->

disable following

• Automatically detect settings
• Use automatic configuration script

Answer 6

You may use PC hostname instead of 127.0.0.1 or localhost