WP_Http::handle_redirects()
Method: Handles an HTTP redirect and follows it if appropriate.
Source: wp-includes/class-wp-http.php:1058
WP_Http::validate_redirects()
Method: Validate redirected URLs.
Source: wp-includes/class-wp-http.php:533
WP_Http::is_ip_address()
Method: Determines if a specified string represents an IP address or not.
Source: wp-includes/class-wp-http.php:1117
WP_Http::_get_first_available_transport()
Method: Tests which transports are capable of supporting the request.
Source: wp-includes/class-wp-http.php:549
http_api_transports
Filter Hook: Filters which HTTP transports are available and in what order.
Source: wp-includes/class-wp-http.php:562
is_allowed_http_origin()
Function: Determines if the HTTP origin is an authorized one.
Source: wp-includes/http.php:458
allowed_http_origin
Filter Hook: Change the allowed HTTP origin result.
Source: wp-includes/http.php:477
send_origin_headers()
Function: Send Access-Control-Allow-Origin and related headers if the current request is from an allowed origin.
Source: wp-includes/http.php:493
wp_http_validate_url()
Function: Validate a URL for safe use in the HTTP API.
Source: wp-includes/http.php:521
http_request_host_is_external
Filter Hook: Check if HTTP request is external or not.
Source: wp-includes/http.php:576