I am viewing this question on my iPad: Is there an explanation for Amy Pond's selective remembering of people?
How do I view the spoilers on the question?
There is no way for me to "hover over" the spoiler - neither tapping nor sliding works to show the spoilers...
Steps to reproduce
Open this question on an iPad not using the mobile site (I am on an iPad 2)
If you're not logged in, log in.
Tap the grey block below:
Test me!
Note that you can't see the super-sensitive spoiler in that gray block.
Log out, and repeat step #3
Wallow in the disappointment that comes from having a secret spoiled.
Analysis
There seems to be an event discrepancy between being logged in and being logged out:
Tim Stone theorizes that this is the root cause of the problem.
mouseover
event on a non-document
element causes that element to be activate-able, which allows you to trigger the hover behaviour of the descendant elements. It's worth noting that in your screenshot the event handler isn't actually applied to the spoiler by the way (it's applied todiv#question.question
), you just have the filter on the right hand side of the Event Listeners panel set to "All nodes"