A bonus-point win leaves Ireland a point off France and guarantees a Triple Crown shootout against Scotland next week
For a moment, Ireland threatened to run off into the night.
After Jacob Stockdale ended his five-year wait for an international try, Ireland celebrated a second try against Wales just 10 minutes into Friday's Six Nations game when Jack Conan crashed over.
But the home support's excitement at the possibility of a thumping turned to frustration when the try was ruled out for Tom O'Toole's knock on.
It set up a nervy night for Ireland when their post-England euphoria was quickly forgotten as they set about keeping a stubborn and spirited Wales side quiet.
