Revision as of 21:08, 18 April 2011 edit Rathigpe (talk \| contribs) 8 edits ←Created page with '{{HTML}} '''Cross-Document Messaging''', or '''web messaging''', is an API introduced in the WHATWG HTML5 draft specification, allowing documents to com...'		Revision as of 21:12, 18 April 2011 edit undo Rathigpe (talk \| contribs) 8 edits No edit summary Next edit →
Line 1: {{HTML}} '''Cross-~~Document~~document ~~Messaging~~messaging''', or '''web messaging''', is an [[API]] introduced in the [[WHATWG]] [[HTML5]] draft specification, allowing documents to communicate with one another across different origins, or source domains.<ref name="WHATWG"/> Prior to HTML5, web browsers disallowed [[cross-site scripting]], to protect against security attacks. This practice barred communication between non-hostile pages as well, making document interaction of any kind difficult.<ref name="WHATWG"/><ref name="WebKit"/> Cross-Document messaging allows scripts to interact across these boundaries, while providing a rudimentary level of security. ==Requirements and Attributes== Using the Messaging API's <code>postMessage</code> method, plain text messages can be sent from one domain to another.<ref name="INTRODUCING"/> This requires that the author first obtain the <code>Window</code> object of the receiving document. As a result, messages can be posted to the following:<ref name="WebKit"/>

Web Messaging: Difference between revisions