fixed the copy code feature in the browser

Author: justcaliturner

browser/js/code_editor.js

@@ -24,22 +24,22 @@ const CopyCode = {
   },
   methods: {
     selectContent() {
-      let range, selection;
       let textArea = this.$refs.textarea;
-      if (!/Chrome/.test(navigator.userAgent)) {
+      // modern browser support (using the clipboard API)
+      if (navigator && navigator.clipboard)
+        return navigator.clipboard.writeText(textArea.value);
+      else {
+        // older browser support
+        let range, selection;
+        textArea.focus();
+        textArea.select();
         range = document.createRange();
         range.selectNodeContents(textArea);
         selection = window.getSelection();
         selection.removeAllRanges();
         selection.addRange(range);
         textArea.setSelectionRange(0, textArea.value.length);
-      } else {
-        textArea.select();
-      }
-      if (document.execCommand("copy") == true) {
         document.execCommand("copy");
-      } else {
-        navigator.clipboard.writeText(textArea.value);
       }
     },
     copy(event) {