Top. location. href does not have permission for Solution

In this way, if someone saves my webpage or uses iframe to include it, then the page will jump directly to my article page. The test was successful in the past, today, I saw a website that included my page. I think my homepage has nothing to do with iframe, but after clicking the inner page, I found that my website has not been accessed, the error message "no access permission" is displayed when you check the javascript error message. The problem persists after the local test. It seems that the problem is not caused by the other website, but by my website, is top. location. href problems are mostly used on the Internet in the same way as I did. After searching for a long time, I finally got a solution:

This is a cross-origin problem. Add the following sentence,

Try {top. location. host} catch (exp) {top. location = http://www.jb51.net ;}