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check if element is sortable before removing sortable property
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@ -273,7 +273,9 @@ function webSocketConnect() {
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* some browsers, such as Safari, from changing the normalization form of the
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* URI from NFD to NFC, breaking our link with MPD.
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*/
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$('#salamisandwich > tbody').sortable('destroy');
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if ($('#salamisandwich > tbody').is(':ui-sortable')) {
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$('#salamisandwich > tbody').sortable('destroy');
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}
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for (var item in obj.data) {
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switch(obj.data[item].type) {
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case "directory":
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