ASP.NET - Navigation To THe Web page Was Cancelled....What s d reason????

Asked By Justin Deva on 21-Feb-12 12:48 AM

   Navigation To THe Web page Was Cancelled....What s d reason????
Sandeep Mittal replied to Justin Deva on 21-Feb-12 12:56 AM
Anoop S replied to Justin Deva on 21-Feb-12 12:57 AM
This problem occurs because Internet Explorer 7 switches Protected Mode settings when certain Web pages are configured in the Trusted Sites area of the Security tab of the Internet Options dialog box. By default, Protected Mode is set to Off for Web sites that are configured in the Trusted Sites area.

Refer this article for more details
Somesh Yadav replied to Justin Deva on 21-Feb-12 01:08 AM

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. 

Adding the site to the user's Trusted Sites and setting the Trusted Sites security settings correctly has proven to be a reliable way to fix the problem, however I have to make the following disclaimer:

IMPORTANT! Only add a site to your trusted sites if you are SURE it is OK. We use this method because the site is a known site, and protected behind a firewall. Do not go any further unless you are certain the site is not a malicious site.

OK, you've been warned. If you are sure of the identity and intentions of the site, go ahead:

  1. In Internet Explorer (your web browser), select Tools > Internet Options from the menu at the top. 


  2. The Internet Options window will appear. Select the Security tab. 

    Then click on the Trusted sites icon.


  3. Click the Sites button.


  4. The Trusted sites window will open. Type the URL of the site in the website box as shown. Click Add. Then add an "s" after the http (i.e. make the address look like: ""). Click Add again.


  5. Be certain that you do NOT check the box for Require server verification (https). Check it twice!


  6. Click the Close button.


  7. With Trusted sites still selected, click "Custom Level".


  8. The Security Settings - Trusted Sites Zone window will open. Scroll down until you see "Display mixed content". Select Enable.


  9. For advanced users only: This fix may not be necessary - if you are pretty sure an iframe is involved and pages that should be opening within the same window are  opening in new windows or not opening at all. Scroll down to Navigate sub-frames across different domains. Click "Prompt." Then click OK to close the window.


  10. Back on the Internet Options window, click OK to save the changes. Try the site again to see if it works better with these settings.