create

Create a new URL request. Only GET, POST, HEAD, DELETE and PUT request methods are supported. Multiple post data elements are not supported and elements of type PDE_TYPE_FILE are only supported for requests originating from the browser process. Requests originating from the render process will receive the same handling as requests originating from Web content -- if the response contains Content-Disposition or Mime-Type header values that would not normally be rendered then the response may receive special handling inside the browser (for example, via the file download code path instead of the URL request code path). The |request| object will be marked as read-only after calling this method.