Merge pull request openlayers#3859 from llambanna/patch-2

Add in crossOrigin option

externs/olx.js

@@ -473,6 +473,7 @@ olx.ProjectionOptions.prototype.global;
  */
 olx.ProjectionOptions.prototype.worldExtent;
 
+
 /**
  * Function to determine resolution at a point. The function is called with a
  * `{number}` view resolution and an `{ol.Coordinate}` as arguments, and returns
@@ -912,6 +913,7 @@ olx.control.AttributionOptions.prototype.tipLabel;
  */
 olx.control.AttributionOptions.prototype.label;
 
+
 /**
  * Text label to use for the expanded attributions button. Default is `»`.
  * Instead of text, also a Node (e.g. a `span` element) can be used.
@@ -2829,6 +2831,7 @@ olx.interaction.SelectOptions.prototype.removeCondition;
  */
 olx.interaction.SelectOptions.prototype.toggleCondition;
 
+
 /**
  * A boolean that determines if the default behaviour should select only
  * single features or all (overlapping) features at the clicked map
@@ -2838,6 +2841,7 @@ olx.interaction.SelectOptions.prototype.toggleCondition;
  */
 olx.interaction.SelectOptions.prototype.multi;
 
+
 /**
  * A function that takes an {@link ol.Feature} and an {@link ol.layer.Layer} and
  * returns `true` if the feature may be selected or `false` otherwise.
@@ -4195,7 +4199,6 @@ olx.source.ImageMapGuideOptions.prototype.ratio;
 olx.source.ImageMapGuideOptions.prototype.resolutions;
 
 
-
 /**
  * Optional function to load an image given a URL.
  * @type {ol.TileLoadFunctionType|undefined}
@@ -4754,6 +4757,7 @@ olx.source.ImageStaticOptions.prototype.url;
 
 /**
  * @typedef {{attributions: (Array.<ol.Attribution>|undefined),
+ *     crossOrigin: (null|string|undefined),
  *     params: (Object.<string, *>|undefined),
  *     logo: (string|olx.LogoOptions|undefined),
  *     tileGrid: (ol.tilegrid.TileGrid|undefined),
@@ -4766,6 +4770,7 @@ olx.source.ImageStaticOptions.prototype.url;
  */
 olx.source.TileArcGISRestOptions;
 
+
 /**
  * Attributions.
  * @type {Array.<ol.Attribution>|undefined}
@@ -4774,6 +4779,18 @@ olx.source.TileArcGISRestOptions;
 olx.source.TileArcGISRestOptions.prototype.attributions;
 
 
+/**
+ * The `crossOrigin` attribute for loaded images.  Note that you must provide a
+ * `crossOrigin` value if you are using the WebGL renderer or if you want to
+ * access pixel data with the Canvas renderer.  See
+ * {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
+ * for more detail.
+ * @type {null|string|undefined}
+ * @api
+ */
+olx.source.TileArcGISRestOptions.prototype.crossOrigin;
+
+
 /**
  * ArcGIS Rest parameters. This field is optional. Service defaults will be
  * used for any fields not specified. `FORMAT` is `PNG32` by default. `F` is `IMAGE` by
@@ -4807,6 +4824,7 @@ olx.source.TileArcGISRestOptions.prototype.logo;
  */
 olx.source.TileArcGISRestOptions.prototype.tileGrid;
 
+
 /**
  * Projection.
  * @type {ol.proj.ProjectionLike}

src/ol/source/tilearcgisrestsource.js

@@ -39,6 +39,7 @@ ol.source.TileArcGISRest = function(opt_options) {
 
   goog.base(this, {
     attributions: options.attributions,
+    crossOrigin: options.crossOrigin,
     logo: options.logo,
     projection: options.projection,
     tileGrid: options.tileGrid,