Tag: IE7

IE 7 & 8: Navigation to the webpage was cancelled, revisited

If you get the error “Navigation to the webpage was cancelled” while browsing, chances are a security setting needs to be corrected. In a previous post, I suggested a “scorched earth” settings-reset procedure, but I’ve found that that isn’t always sufficient. Sometimes the settings need to be relaxed beyond factory defaults.

For instance, our Learning Management System (LMS) uses mixed https and http content, and Internet Explorer is often set to block mixed content entirely. Sometimes it will prompt the user but often it will simply give the error “Navigation to the webpage was cancelled.” In the case of our LMS, a large clue to what is going on is that the login page appears completely unstyled, because the style sheets and images are part of the blocked content. 

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IE8: Navigation to the webpage was cancelled

With the advent of IE 8, I started getting calls about a new error when accessing our learning management system.

“Navigation to the webpage was cancelled.”

This error can be caused by many things, but in this case, I believe it has to do with the fact that the LMS has both secure and insecure assets in the frameset. Unfortunately, many times messages will come up asking people whether they want to view both types, and they will click “no” without knowing that the page requires them to function.

Since I can’t ever really know what is going on with a user’s home computer’s security setup, I simply tell them to reset their Internet Explorer to its default settings.

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Java error message: Several Java Virtual Machines running in the same process

When attempting to launch browser-based SCORM courseware, people have been getting the error: “Several Java Virtual Machines running in the same process caused an error”

Apparently many people have this issue since upgrading java. I came across it because it can affect the delivery of elearning courses if the learning management system relies on a java-applet based scorm adaptor to communicate.

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Internet Explorer 7 blocks cross-domain iframe to parent communication

A new security setting in Microsoft Internet Explorer 7 has been causing problems with requests between iframe and parent. There is a security setting in the Internet options called “Navigate sub-frames across different domains”, which in IE6 was set to “Enabled” under Medium security, but is set to “Disabled” in IE7 by default.

An example of the type of communication that is blocked is shown here:

The container page sends a message to Page 1, in Domain A: “Change your location to Page 2”. In IE6, this is not a problem. But in IE 7, it is allowed.

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