Bug 1049014 - [B2G][E.me][Search Results] Long pressing on a search result launches the app when released

https://bugzilla.mozilla.org/show_bug.cgi?id=1049014
see https://github.com/mozilla-b2g/gaia/pull/22421/files#diff-b9db78f700b0722b30fbdeb2a7f04965R158, I used a setTimeout to specifically account for this (let the contextmenu attribute work). But maybe it's not working properly, that's what I'd like to investigate.