Fiddler Ideas
The free web debugging proxy for any browser, system or platform.
The free web debugging proxy for any browser, system or platform.
The free web debugging proxy for any browser, system or platform.
In order to debug a website served on localhost by IIS Express you need to use localhost.fiddler to get traffic to show up in Fiddler, but if you use HTTPS you'll first get a warning that the certificate name does not match and you have to manually confirm this connection.
This is generally a good idea, but in the case of localhost and localhost.fiddler I think this warning should not be shown, as having to use localhost.fiddler is simply a technical restriction that Fiddler should know about...
Guest
This is a good bug to fix.
The workaround for now is simple. Click Rules > Customize Rules. Scroll to OnBeforeRequest and add the code:
if (oSession.HostnameIs("localhost")) {// Use X-IgnoreCertErrors if you want to ignore *ALL*
// errors (e.g. untrusted root)
oSession["X-IgnoreCertCNMismatch"] = "ImplicitlyTrustingLocalServerCN";
}