#key - copier dans le presse-papier
function copy(text) {     if (window.clipboardData && window.clipboardData.setData) {         // IE specific code path to prevent textarea being shown while dialog is visible.         return clipboardData.setData("Text", text);       } else {         var textarea = document.createElement("textarea");         textarea.textContent = text;         textarea.style.position = "fixed";  // Prevent scrolling to bottom of page in MS Edge.         document.body.appendChild(textarea);         textarea.select();         try {             return document.execCommand("copy");  // Security exception may be thrown by some browsers.         } catch (ex) {             console.warn("Copy to clipboard failed.", ex);             return false;         } finally {             document.body.removeChild(textarea);         }     } }