Why when add <?xml version=“1.0” encoding=“utf-8”?> to web page don´t work on hosting?
问题 I am developing a simple webpage at hostgator.com. I have the standard headers, but when I add the following line: <?xml version="1.0" encoding="utf-8"?> the page does not work. I would like why. This is the full header: <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1 /DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="es" xml:lang="es"> ... rest of code ... The server returns me a blank page