Capturing Localhost Traffic
|Product Version||1.0.0 and above|
Traffic sent to http://localhost or http://127.0.0.1 is not captured when using some browsers like Google Chrome or Firefox even though the Capturing mode of Fiddler Everywhere is turned on. How can I handle this issue?
Utilize either of the following approaches:
Use the machine name instead of
- Use one of the specially provided aliases in Fiddler Everywhere.
Both solutions require you to enable the Capturing mode.
Use the machine name as an alias for
localhost or the
127.0.0.1 loopback addresses. For example, if the machine name is
http://myrootuserid:8081/mytestpage.aspx in the Shell.
Depending on the specific scenario, you can replace
127.0.0.1 with one of the following special Fiddler aliases:
ipv4.fiddlerfor connections using Internet Protocol version 4.
ipv6.fiddlerfor connections using Internet Protocol version 6.
Hostheader (applicable for IIS Express).
For example, traffic sent to the following URL may not be captured:
To capture that traffic with Fiddler Everywhere, use any of the following approaches:
ipv4.fiddleralias to hit
localhostwith the ipv6.fiddler alias to hit
localhost.fiddleralias to hit
While using one of the above solutions to capture localhost requests, the traffic will be captured in the Live Traffic list, and the loopback address will be displayed as a host name, usually
127.0.0.1. To filter by the Host column so that only localhost traffic is displayed, enter the loopback address, and not the aliases used in the browsers, as a