# x_setting_items

key: iframe_previews
type: text
value:
  {
  	"doc,docx,xls,xlsx,ppt,pptx": {
  		"Microsoft":"https://view.officeapps.live.com/op/view.aspx?src=$e_url",
  		"Google":"https://docs.google.com/gview?url=$e_url&embedded=true"
  	},
  	"pdf": {
  		"PDF.js":"https://cdn.cooluc.com/pdf.js/web/viewer.html?file=$e_url"
  	},
  	"epub": {
  		"EPUB.js":"https://cdn.cooluc.com/epub.js/web/viewer.html?file=$e_url"
  	}
  }


