一鍵複製 execCommand(“copy”)

$('button.url_token').click(function(){
   var selection = document.getSelection();
   var range = document.createRange();
   range.selectNode( this.previousElementSibling);
   selection.removeAllRanges();
   selection.addRange(range);
   document.execCommand('copy')
   selection.removeAllRanges();
});

必須要顯示的欄位才可以複製到內容

解法:
https://stackoverflow.com/questions/47879184/document-execcommandcopy-not-working-on-chrome?rq=1