In the WebEngine Content Manipulation Example, under "Effect", after toggling the "Turn images upside down" option on, the images will not stay upside down after reloading the webpage. If you have toggled this option on, and you have reloaded the webpage, left-clicking the option will at first not turn the images upside down since you are technically toggling the option off. You have to left-click it twice after reloading a page to make the images turn upside down again, toggling the option off, and the on immediately after.

Steps to reproduce:

Edit: Try to reproduce this in the YouTube website, as the issue happened very frequently there.

1. Enter a webpage that contains images.
2. Under "Effect", left-click "Turn images upside down". Notice that all images on the webpage turn upside down.
3. Left-click "Reload". Notice that all images that were previously upside down are now right side up.
4. Repeat step 2 once. Notice that nothing changes.
5. Repeat step 2 once more. Notice that all images turn upside down.

Expected behavior:

When the option "Turn images upside down" has been toggled on, all images should be displayed upside down, and this effect should not stop once a page has been reloaded. It should only stop when the option has been toggled off.