Where exactly did you specify the "host filter"? Can you send a screenshot?
The Host Filter dropdown enables you to flag or hide traffic to domain names specified in the textbox under the
dropdown.
You may specify multiple hosts by including a semicolon between each.
Subdomains are not wildcarded automatically. That means that if you have “
Show only the following Hosts” set and
only
fiddler2.com is in the list, you will not see traffic to
www.fiddler2.com. To instead see traffic to subdomains,
add a wildcard like
*.fiddler2.com. This wildcarded entry will include traffic to
test.fiddler2.com and
sub.fiddler2.com, and so on. If you also want to see traffic to the root domain
fiddler2.com, change the wildcard
to
*fiddler2.com— this will include traffic to any domain that ends with
fiddler2.com without requiring a
leading dot.
When the background of the text box is yellow, it means your changes have not yet been applied. Click anywhere
outside the box to save changes to the list