Ticket #18341: 18341.patch

wp-includes/js/autosave.dev.js

@@ -61 +61 @@
         doPreview = function() {
                 $('input#wp-preview').val('dopreview');
                 $('form#post').attr('target', 'wp-preview').submit().attr('target', '');
+
+                /*
+                 * Workaround for WebKit bug preventing a form submitting twice to the same action.
+                 * https://bugs.webkit.org/show_bug.cgi?id=28633
+                 */
+                if ( $.browser.safari ) {
+                        $('form#post').attr('action', function(index, value) {
+                                return value + '?t=' + new Date().getTime();
+                        });
+                }
+
                 $('input#wp-preview').val('');
         }