Make Util.getAbsoluteUrl work in IE8 (#10049)

Change-Id: Ia473ec5ee9b491fdf6d8bc18de388a3133d7c52e

1 files changed, 20 insertions, 3 deletions

diff --git a/client/src/com/vaadin/client/Util.java b/client/src/com/vaadin/client/Util.java
index 7aea69a61d..bf4dca7712 100644
--- a/client/src/com/vaadin/client/Util.java
+++ b/client/src/com/vaadin/client/Util.java
@@ -25,11 +25,13 @@ import java.util.List;
 import com.google.gwt.core.client.Scheduler;
 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
 import com.google.gwt.dom.client.AnchorElement;
+import com.google.gwt.dom.client.DivElement;
 import com.google.gwt.dom.client.Document;
 import com.google.gwt.dom.client.NativeEvent;
 import com.google.gwt.dom.client.Node;
 import com.google.gwt.dom.client.NodeList;
 import com.google.gwt.dom.client.Style;
+import com.google.gwt.dom.client.Style.Display;
 import com.google.gwt.dom.client.Touch;
 import com.google.gwt.user.client.Command;
 import com.google.gwt.user.client.DOM;
@@ -1207,8 +1209,23 @@ public class Util {
      * @return the corresponding absolute URL as a string
      */
     public static String getAbsoluteUrl(String url) {
-        AnchorElement a = Document.get().createAnchorElement();
-        a.setHref(url);
-        return a.getHref();
+        if (BrowserInfo.get().isIE8()) {
+            // The hard way - must use innerHTML and attach to DOM in IE8
+            DivElement divElement = Document.get().createDivElement();
+            divElement.getStyle().setDisplay(Display.NONE);
+
+            RootPanel.getBodyElement().appendChild(divElement);
+            divElement.setInnerHTML("<a href='" + escapeHTML(url) + "' ></a>");
+
+            AnchorElement a = divElement.getChild(0).cast();
+            String href = a.getHref();
+
+            RootPanel.getBodyElement().removeChild(divElement);
+            return href;
+        } else {
+            AnchorElement a = Document.get().createAnchorElement();
+            a.setHref(url);
+            return a.getHref();
+        }
     }
 }