iframe跨源報錯:"Blocked a frame with origin from accessing a cross-origin frame"

1、報錯信息：

　　「Blocked a frame with origin from accessing a cross-origin frame」

2、在stackoverflow上找到緣由

Same-origin security policy

You can't access an <iframe> with 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.

（同源策略）

Origin is considered different if at least one of the following parts of the address isn't maintained:

<protocol>://<hostname>:<port>/path/to/page.html

Protocol（協議）, hostname（主機名） and port（端口） must be the same of your domain, if you want to access a frame.

 

 iframe調用父頁面的函數：parent.functionNme();

ps:若是報以上錯誤，把iframe和父頁面代碼都放入工程項目中在本地跑起來便可解決同源問題。

 原文連接：http://stackoverflow.com/questions/25098021/securityerror-blocked-a-frame-with-origin-from-accessing-a-cross-origin-frame