DokuWiki automatically creates a draft file of the currently edited page every 30 seconds. This is done through AJAX in the background without interupting the editing process. In case of an editing interruption (eg. Browser crash) the draftfile can be reloaded later and editing continued.
Saving a draftfile can be forced by pressing the preview button. To continue a previously stored draftfile return to the page you were editing and press the “Recover Draft” button which replaces the “Edit” button, when a draft is available.
Draftfiles are user dependent. A draftfile expires when a new revision of the page is saved by another user.
The feature can be disabled using the usedraft option.