SecurityError: Blocked a frame with origin from accessing a cross-origin frame

Same-origin policy You can’t access an <iframe> with different origin using JavaScript, it would be a huge security flaw if you could do it. For the same-origin policy browsers block scripts trying to access a frame with a different origin. Origin is considered different if at least one of the following parts of the address isn’t maintained: protocol://hostname:port/… Protocol, hostname and … Read more

jquery variable syntax [duplicate]

$self has little to do with $, which is an alias for jQuery in this case. Some people prefer to put a dollar sign together with the variable to make a distinction between regular vars and jQuery objects. example: These are declared as two different variables. It’s like putting underscore before private variables. A somewhat popular pattern … Read more

Is jQuery $.browser Deprecated?

From the documentation: The $.browser property is deprecated in jQuery 1.3, and its functionality may be moved to a team-supported plugin in a future release of jQuery. So, yes, it is deprecated, but your existing implementations will continue to work. If the functionality is removed, it will likely be easily accessible using a plugin. As to … Read more