text: (function() {
      installCopyTitleButton(() => {
          return document.querySelector('.pagehead-actions')
      }, () => {
          console.log('copy url and title')
          var object = document.querySelector('h1.gh-header-title span.markdown-title')
          if(!object){
              return
          }
          var title = object.textContent
          object = document.querySelector('h1.gh-header-title span.f1-light')
          if(!object){
              return
          }
          var key = object.textContent
          object = document.querySelector("a.js-pjax-history-navigate")
          if(!object){
              return
          }
          var url = object.getAttribute('href')
          return key + " " + title + "\n" + url
      })
  })()