diff --git a/web/compatibility.js b/web/compatibility.js
index ad4c8f8a9..7d1d72553 100644
--- a/web/compatibility.js
+++ b/web/compatibility.js
@@ -83,6 +83,21 @@
};
})();
+// Object.keys() ?
+(function checkObjectKeysCompatibility() {
+ if (typeof Object.keys !== 'undefined')
+ return;
+
+ Object.keys = function objectKeys(obj) {
+ var result = [];
+ for (var i in obj) {
+ if (obj.hasOwnProperty(i))
+ result.push(i);
+ }
+ return result;
+ };
+})();
+
// No XMLHttpRequest.response ?
(function checkXMLHttpRequestResponseCompatibility() {
var xhrPrototype = XMLHttpRequest.prototype;
diff --git a/web/viewer.html b/web/viewer.html
index f7a5378ed..0c6ab385e 100644
--- a/web/viewer.html
+++ b/web/viewer.html
@@ -3,6 +3,7 @@
Simple pdf.js page viewer
+
@@ -25,7 +26,6 @@
-