Better grab the filename from the url
Add User-Agent header
Merge pull request #59 from getsentry/add-user-agent

Add User-Agent header
Add Referer header
Public wth a public cache control so it can be cached on https
Merge pull request #60 from getsentry/add-referrer

Add Referer header
Lint
Don't send filename, Sentry will pick it up
in_app also reflects TraceKit
function shouldn't be an empty string if we can't get it
Expose a `fetchContext` config option and have it disabled by default
Learn Javascript
Fix tests
Mock getHttpData for integration tests so it's less flaky
Naming is hard
1800 is a more reasonable TTL
@dcramer doesn't know how Sentry works