Can you jump over a Junkrat trap?
Solution 1:
No characters can jump high enough.
Overwatch hitboxes have ben proven to work by radius (sphere) on many occasions, so junkrat trap should work the same. You would have to jump 1 meter high to clear it. And all characters jump less than that to my knowledge.
Characters who can rocket jump / float can of course clear it (Rocket jumping taking more skill of course)