Filter by Status Code

[Marc J. Cawood]

I would like to filter out, but not block, success codes in order to
see a list of 401s, 404s and 500s in the session list.

The documentation for the Filters feature says:
"Fiddler's Filters tab allows you to easily filter and flag traffic
displayed in the Fiddler UI"
Then, under "Response Status Code" it says:
"This list enables you to block HTTP errors, redirects, authentication
challenges and cache-reuse status codes."
(Source: http://www.fiddler2.com/fiddler2/help/Filters.asp)

Basically, in practice, Fiddler IS blocking and not filtering the
display. This means if you check "Hide success (200, 204, 206) it
blocks and does not hide.

Is this by design?

[EricLaw]

I'm not sure what you mean when you say "In practice"?

The documentation is incorrect; it's a display filter only.

switch (oSession.responseCode){
case 200:
case 204:
case 206:
if (oFilters.bHideSuccess) oSession["ui-hide"] =
"HideSuccess";
break;
case 304:
if (oFilters.bHide304) oSession["ui-hide"] =
"Hide304";
break;
case 300:
case 301:
case 302:
case 303:
case 307:
if (oFilters.bHideRedirects) oSession["ui-hide"] =
"HideRedir";
break;
case 401:
if (oFilters.bHide401) oSession["ui-hide"] =
"Hide401";
break;