Safari in iOS 8.0 can not display a PDF embedded in a HTML page(with embed tag).

Safari in iOS 8.0 can not display a PDF embedded in a HTML page(with embed tag).

In iOS7.0 or earlier Safari can display the PDF if it is embedded in a HTML page.

demo page:

http://www.broadband-xp.com/test/ios/embed.html

Steps to Reproduce:

1. In iOS 8.0 with Safari access to the following test page:

http://www.broadband-xp.com/test/ios/embed.html

You will not see a PDF there.

2. In iOS 7.0 or earlier with Safari access to the same page.

Then you will see a PDF.

Is this change a bug or an expected behavior?