MACROMEDIA FLASH 8-ACTIONSCRIPT 2.0 LANGUAGE Reference page 890

For Flash Player 8:
Loading is not allowed if the calling movie clip is in the local-with-file-system sandbox
and the loaded movie clip is from a network sandbox.
Loading is not allowed if the calling SWF file is in a network sandbox and the movie clip
to be loaded is local.
Network sandbox access from the local-trusted or local-with-networking sandbox requires
permission from the website by means of a cross-domain policy file.
Movie clips in the local-with-file-system sandbox may not script movie clips in the local-
with-networking sandbox (and the reverse is also prevented).
For Flash Player 7 and later:
Websites can permit cross-domain access to a resource by means of a cross-domain policy
file.
Scripting between SWF files is restricted based on the origin domain of the SWF files. Use
the
System.security.allowDomain()
For more information, see the following:
Chapter 17, "Understanding Security," in Learning ActionScript 2.0 in Flash
The Flash Player 8 Security white paper at http://www.macromedia.com/go/fp8_security
The Flash Player 8 Security-Related API white paper at http://www.macromedia.com/go/
fp8_security_apis
You can extend the methods and event handlers of the MovieClip class by creating a subclass.
Availability: ActionScript 1.0; Flash Player 5 - The ability to load JPEG files is available as of
Flash Player 6. The ability to load unanimated GIF files, PNG files, or progressive JPEG files
is available as of Flash Player 8.
Parameters
- The absolute or relative URL of the SWF, JPEG, GIF, and PNG file to be
url:String
loaded. A relative path must be relative to the SWF file at level 0. Absolute URLs must
include the protocol reference, such as
[optional] - Specifies an HTTP method for sending or loading variables. The
method:String
parameter must be the string
The method appends the variables to the end of the URL and is used for small numbers
GET
of variables. The
POST
long strings of variables.
890 ActionScript classes
http://
or . If no variables are to be sent, omit this parameter.
GET POST
method sends the variables in a separate HTTP header and is used for
method to adjust these restrictions.
or .
file:///