title: Google Maps Javascript api zoom issue with svg marker
body: <p>I've a simple map with an svg file as marker icon.
  When the map is loaded no problem but, if i try to zoom in or out, image became bigger and is cutoff.
  This behavior change from browser to browser:</p>
  
  <ul>
  <li>Google Chrome starts ok but if you try to zoom it reveals the issue.</li>
  <li>Safari works well</li>
  <li>Firefox shows nothing</li>
  </ul>
  
  <p>I think is an svg related issue, but i can't find where the bug is.
  I've created a <a href="https://jsfiddle.net/5sg32psg/" rel="nofollow">jsfiddle</a> with this code</p>
  
  <pre><code>var mapOptions = {
      zoom: 5,
      mapTypeId: google.maps.MapTypeId.ROADMAP,
      center: new google.maps.LatLng(52.373743,4.893114)
  };
  
  map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
  
      var icon = {
      url: "http://filippopoderini.com/marker-07.svg",
      anchor: new google.maps.Point(23,60),
      scaledSize: new google.maps.Size(46,60)
  }
  
  var marker = new google.maps.Marker({
      position: new google.maps.LatLng(52.373743, 4.893114),
      map: map,
      draggable: false,
      icon: icon,
  });
  </code></pre>
  
  <p>and this is svg code</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;!-- Generator: Adobe Illustrator 19.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  --&gt;
  &lt;svg version="1.1" id="Capa_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
       viewBox="-2339.1 129.2 289 375" style="enable-background:new -2339.1 129.2 289 375;" xml:space="preserve"&gt;
  &lt;style type="text/css"&gt;
      .st0{fill:#32ABDF;stroke:#424242;stroke-width:3;stroke-miterlimit:10;}
      .st1{fill:#A9A9A9;stroke:#424242;stroke-width:3;stroke-miterlimit:10;}
      .st2{fill:#424242;}
      .st3{fill:#FFFFFF;}
      .st4{fill:#32ABDF;}
  &lt;/style&gt;
  &lt;g&gt;
      &lt;path class="st2" d="M-2298,370.3L-2298,370.3c-5-5.3-9.5-10.9-13.5-16.8c-16.1-23.5-24.6-51.1-24.6-79.7
          c0-78,63.5-141.5,141.5-141.5s141.5,63.5,141.5,141.5c0,28.6-8.5,56.2-24.6,79.7c-4,5.9-8.6,11.6-13.5,16.8l-0.1,0.1l-103.4,129.1
          L-2298,370.3z"/&gt;
      &lt;path class="st3" d="M-2194.6,135.2c37,0,71.8,14.4,97.9,40.6c26.2,26.2,40.6,60.9,40.6,97.9c0,28-8.3,55-24,78
          c-3.9,5.8-8.4,11.3-13.2,16.5l-0.2,0.2l-0.1,0.2l-101,126.1l-101-126.1l-0.1-0.2l-0.2-0.2c-4.8-5.1-9.2-10.6-13.1-16.4
          c-15.8-23-24.1-50-24.1-78c0-37,14.4-71.8,40.6-97.9C-2266.3,149.6-2231.6,135.2-2194.6,135.2 M-2194.6,129.2
          c-79.8,0-144.5,64.7-144.5,144.5c0,30.2,9.3,58.2,25.1,81.4h0l0,0c4.1,6,8.7,11.8,13.7,17.1l105.7,132l105.7-131.9
          c5-5.4,9.6-11.1,13.7-17.2l0,0c15.8-23.2,25.1-51.2,25.1-81.4C-2050.1,193.9-2114.8,129.2-2194.6,129.2L-2194.6,129.2z"/&gt;
  &lt;/g&gt;
  &lt;g&gt;
      &lt;path class="st3" d="M-2194.6,198.3c-0.6,0-1.3,0.3-1.7,0.7l-56.7,59c-0.9,0.9-0.9,2.4,0.1,3.3c0.9,0.9,2.5,0.9,3.4-0.1l7.5-7.8
          v63.2h30.8v-54.5h33.2v54.5h30.8v-63.2l7.5,7.8c0.5,0.5,1.1,0.7,1.7,0.7c0.6,0,1.2-0.2,1.7-0.7c0.9-0.9,1-2.4,0.1-3.3l-56.7-59
          C-2193.3,198.5-2193.9,198.3-2194.6,198.3z M-2170.8,210v7.2l14.2,14.8v-22H-2170.8z M-2206.4,266.9v49.8h23.7v-49.8H-2206.4z"/&gt;
  &lt;/g&gt;
  &lt;/svg&gt;
  </code></pre>