Javascript UndoManager Browser Support

Question

The HTML5 specification mentions UndoManager, which can be used to query the previous state of a document that has been edited by the user ( http://www.whatwg.org/specs/web-apps/current-work/#undomanager ). Does it support a browser? Is there any hope for browser support?

Answer 1

You can test your own browsers by translating them to HTML5Test.com . You can also check it on your page (and then use it if it exists) by doing the following:

return typeof UndoManager !== 'undefined';

, , .

: Chrome 6.0, IE 8, FF 3.6

Browser       Score (160)   UndoManager Support
--------------------------------------
IE8           19            no
FF3.6         101           no
Chrome 6      142           no
Safari 4.0.5  70            no
Opera 10.53   102           no

Chrome, Firefox Opera HTML5. , UndoManager . Safari HTML5 "". , IE9 -.

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