function
fetch.preconnect
options?: { dns: boolean; http: boolean; https: boolean; tcp: boolean }
): void;
Resolve a URL's DNS and establish a TCP connection before a request is made, to speed up the eventual fetch.
Not part of the Fetch API specification.
@param url
The URL to preconnect to
@param options
Which stages of the connection to set up
Referenced types
class URL
The URL interface represents an object providing static methods used for creating object URLs.