<html> <head> </head> <body> The script encountered an error and will be aborted. To view extended error messages, enable this feature in .settings.php. </body> </html>
You can type viewhtmlonline.com in front of any url you're browsing and it will show you the source.
viewhtmlonline.com
For example: viewhtmlonline.com/https://temp.cool
viewhtmlonline.com/https://temp.cool