JezK
Edit File: index.html.template
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>{{TITLE}}</title> <style type="text/css">{{CSS|raw}}</style> </head> <body> <script> window.spec = {{SPEC|raw}}; </script> <div id="root"></div> <script>{{JS|raw}}</script> <script>{{EXTENSION_JS|raw}}</script> <script> window.renderErrorPage(); </script> </body> </html>