title: Setting HTTP Referrer on Maps API Browser Key Results in 403 Error
body: <p>I'm confused about how the HTTP Referrer settings work on Google Maps API Browser Keys.</p>
  
  <p>I'm building a webpage that programatically requests images from Google Maps (primarily the Google Maps Street View Image API, but also does some queries of MaxZoomService and the Static Maps API from the Javascript API).</p>
  
  <p>If I create a Browser key without an HTTP Referrer, it works great.</p>
  
  <p>If I create a Browser key with an HTTP Referrer that matches the domain the page is loaded from, I get 403 errors. I'm using a referrer like <code>*.mydomain.com/*</code> </p>
  
  <p>What's going on? If i set the HTTP Referrer to match the domain the page is loaded from, wouldn't that be correct usage of the referrer? I can go without, but am afraid that opens me up to others grabbing my key and using it. Am I misunderstanding how the referrer works?</p>