src= added to webview https://www.xxx.com
 it is no problem to open Mini Program at first. 
 but there are jumps in the web page. Such as 
a href= "index.php?id=666"
Click the jump inside, Mini Program is the prompt, illegal business domain name http://www.xxx.com
 Why 
  https://www.xxx.com/index.php.
jumping in Mini Program will turn https into http
