Frameset child window Get parent window failure reason?

Error message:

arrow.html:44 uncaught securityerror:blocked A frame with origin ' null ' from accessing a frame with Origin ' null '. protocols, domains, and ports must match.

Error code:

1$ (". Main"). Click (function() {2         varTartget =window.parent;3         varTartget1 =Window.parent.window;4 var tartget2 = window.parent.window.document; child window failed to get parent window5         varTartget3 = Window.parent.window.document.getElementById ("Mainframeset");6         varMainframeset = Window.parent.window.document.getElementById ("Mainframeset");7         if(Mainframeset.cols = = "200,6,*") {8Mainframeset.cols = "0,6,*";9$ (". Main"). Removeclass ("Leftarrow"));Ten$ (". Main"). AddClass ("RightArrow")); One}Else { AMainframeset.cols = "200,6,*"; -$ (". Main"). Removeclass ("RightArrow")); -$ (". Main"). AddClass ("Leftarrow")); the         } -})

Solution:

Put the code on the server and run.

Source address (static HTML): Http://files.cnblogs.com/files/xiluhua/frameset_html.rar

Source Address (server): Http://files.cnblogs.com/files/xiluhua/frameset.rar

Frameset child window Get parent window failure reason?