Merge pull request allenhwkim#674 from alitto/issue-670

Fix for issue allenhwkim#670 "Custom markers disappear on second load"

Author: allenhwkim

directives/custom-marker.js

@@ -69,9 +69,9 @@
       position && (this.position = position); /* jshint ignore:line */
 
       if (this.getProjection() && typeof this.position.lng == 'function') {
-        var posPixel = this.getProjection().fromLatLngToDivPixel(this.position);
         var _this = this;
         var setPosition = function() {
+          var posPixel = _this.getProjection().fromLatLngToDivPixel(_this.position);
           var x = Math.round(posPixel.x - (_this.el.offsetWidth/2));
           var y = Math.round(posPixel.y - _this.el.offsetHeight - 10); // 10px for anchor
           _this.el.style.left = x + "px";