#733: adding UA sniff for history support

feature-detects/history.js

@@ -1,4 +1,29 @@
 
+// Test for the history API
 // http://dev.w3.org/html5/spec/history.html#the-history-interface
+// by Hay Kranen < http://github.com/hay >
 
-Modernizr.addTest('history', !!(window.history && history.pushState));
+Modernizr.addTest('history', function() {
+    // Issue #733
+    // The stock browser on Android < 3.0 returns positive on history support
+    // Unfortunately support is really buggy and there is no clean way to detect
+    // these bugs, so we fall back to a user agent sniff :(
+    var ua = navigator.userAgent;
+    var properCheck = !!(window.history && history.pushState);
+
+    if (ua.indexOf("Android") === -1) {
+        // No Android, simply return the 'proper' check
+        return properCheck;
+    } else {
+        // We need to check for the stock browser (which identifies itself
+        // as 'Mobile Safari'), however, Chrome on Android gives the same
+        // identifier (and does support history properly), so check for that too
+        if (ua.indexOf("Mobile Safari") !== -1 && ua.indexOf("Chrome") === -1) {
+            // Buggy implementation, always return false
+            return false;
+        } else {
+            // Chrome, return the proper check
+            return properCheck;
+        }
+    }
+});