You can adjust your filter settings to allow you to personalize the API test.
"Include Domains" lets you register API calls from outside of the current domain. You'll find it useful when registering API flows that require external domains for authentication, purchase flows, etc.
Exclude Domains registers every domain but the inputted domain you type in.
Filter Containing Strings
The filter will remove strings containing any input given (such as ".js", “.img”,”css”, etc..) so that the URLs for these strings don't affect your API flow. This is an essential process for ensuring that your test is composed reliably.
The .har registered scenario/flow file can be downloaded by clicking on the bottom-left icon.