code: public static boolean startsWithHttpScheme(String url) {
  		if (url == null || url.isEmpty()) {
  			return false;
  		}
  
  		for (String scheme : HTTP_SCHEMES) {
  			int prefixLength = scheme.length();
  			if (url.length() > prefixLength) {
  				String prefix = url.substring(0, prefixLength);
  				if (prefix.equalsIgnoreCase(scheme)) {
  					return true;
  				}
  			}
  		}
  
  		return false;
  	}
docs: Check if given {@code url} starts with HTTP scheme (i.e {@code "http"} or {@code "https"}).
  
  @param url The URL to check.
  @return {@code true} if {@code url} starts with HTTP scheme, {@code false} otherwise.