Added better progress event logic:

- Works for data: URLs
- Works in IE11

lime/_backend/html5/HTML5HTTPRequest.hx

@@ -2,12 +2,14 @@ package lime._backend.html5;
 
 
 import js.html.AnchorElement;
+import js.html.ErrorEvent;
 import js.html.Event;
 import js.html.Image in JSImage;
 import js.html.ProgressEvent;
 import js.html.XMLHttpRequest;
 import js.Browser;
 import haxe.io.Bytes;
+import js.html.XMLHttpRequestResponseType;
 import lime.app.Future;
 import lime.app.Promise;
 import lime.graphics.Image;
@@ -17,7 +19,7 @@ import lime.net.HTTPRequestHeader;
 import lime.utils.AssetType;
 
 @:access(lime.graphics.ImageBuffer)
-
+@:access(lime.graphics.Image)
 
 class HTML5HTTPRequest {
 	
@@ -423,13 +425,7 @@ class HTML5HTTPRequest {
 	private static function __loadImage (uri:String, promise:Promise<Image>):Void {
 		
 		var image = new JSImage ();
-		
-		if (!__isSameOrigin (uri)) {
-			
-			image.crossOrigin = "Anonymous";
-			
-		}
-		
+		if(uri.indexOf("data:") == 0){
 			image.addEventListener ("load", function (event) {
 				
 				var buffer = new ImageBuffer (null, image.width, image.height);
@@ -458,7 +454,47 @@ class HTML5HTTPRequest {
 			}, false);
 			
 			image.src = uri;
+		}else{
+			if (!__isSameOrigin (uri)) {
 				
+				image.crossOrigin = "Anonymous";
+				
+			}
+
+			var request = new XMLHttpRequest();
+
+			request.onload = function (_) {
+				
+				activeRequests--;
+				processQueue ();
+				
+				var img = new Image();
+				img.__fromBytes( Bytes.ofData(request.response), function(img){
+					promise.complete (img);
+				});
+				
+			}
+
+			request.onerror = function (e:ErrorEvent) {
+				
+				promise.error(e.message);
+				
+			}
+
+			request.onprogress = function(e:ProgressEvent) {
+				
+				if (e.lengthComputable) {
+					
+					promise.progress(e.loaded, e.total);
+					
+				}
+				
+			}
+			request.open("GET", uri, true);
+			request.responseType = XMLHttpRequestResponseType.ARRAYBUFFER;
+			request.overrideMimeType('text/plain; charset=x-user-defined'); 
+			request.send(null);
+		}
 	}