In this article, we have discussed the theoretical aspect of HTTP Strict Transport Security (HSTS) and will explain what is HSTS Preload List. In the upcoming articles, we will show you, how to properly configure your server for making it eligible to be included in the HSTS Preload List.
HTTP Strict Transport Security (HSTS)? HSTS Preload List? Are they appearing as new words? Not exactly, it is a thing which the major three browsers is trying to implement, there are related works since 2012.
problem here is that problem here is that you have gotten some text or whitespace (spaces, newline) before the opening PHP tag or after the closing PHP tag in your theme’s functions.php file. There can’t be a single character before or after those tags - http://www.hbnews24.com/2015/08/06/problem-here-is-that/