Data: avoid non-alphanumeric chars in expando properties

Ref chromium issue 378607
Ref #14839
Closes gh-1662

diff --git a/src/data/Data.js b/src/data/Data.js
index 423bef55bdcf4e34e7f2c6458009c2017338d752..85afd64f54b4427fe5cdc65c2edaf8f96fa6a1d9 100644 (file)
--- a/src/data/Data.js
+++ b/src/data/Data.js
@@ -14,7 +14,7 @@ function Data() {
                }
        });
 
-       this.expando = jQuery.expando + Math.random();
+       this.expando = jQuery.expando + Data.uid++;
 }
 
 Data.uid = 1;