Checks if the resource pointed by the given url
exists by performing an HEAD
HTTP request.
Checks if the resource pointed by the given url
exists by performing an HEAD
HTTP request.
Exceptions thrown by the HTTP client will be silently discarded and the method will return false
.
the url of the resource to check
true if the resource exists, false otherwise.
Functions in this object will be accessible in the JavaScript engine used for
RecurrentScript
.