When I look at my progress table, they just show me the view solution button. Anybody knows how to fix this?
“View solution” will take you to the challenge.
View solution apparently shows a dialogue with the solution which passed the test. I didn’t notice this feature the last time I checked my progress. It’s neat.
To actually reach the challenge you can select it from the map, and alter the code at will from there.
I hadn’t noticed that they’d changed the “View solution” functionality when the fixed the security hole.
Didn’t know I have been using it wrong all this time. Thanks a lot guys 
I believe that is the way it used to be before they patched it.