Do you want to view only the webpage content that was delivered securely?

給公司一舊項目加上　表單離開　提示後。IE 出警告框　　Do you want to view only the webpage content that was delivered securely?

查了一些資料,解決如下

url: http://www.pelagodesign.com/blog/2007/10/30/ie7-removechild-and-ssl/

IE7, removeChild and SSL

We recently launched some items into an SSL environment and an IE7 JS bug appeared when deleting a DIV. The bug is slightly difficult to debug in that all versions of IE are especially “blind” when it comes to JavaScript error handling. Here’s the criteria:

    page is being requested in SSL mode
    div has a background image in the form url(/path/to/image.extension)
    the use of the removeChild function

 
Any time the specific div gets removeChild’d AND it contains a background css style, IE will prompt the user the page contains non-secure elements right before it gets removed.

To get around this, delete the background css style before calling the removeChild function. Microsoft has also released two alternate fixes.

Update: IE8 seems to be affected by another type of javascript manipulation that triggers mixed content warning.