vLookup.html fill will not load if I have other scrpits on a webpart page or wikipage. Is there a way to load it on the page via SPDesigner as a .js file? If not, do you know another way this will work with other scripts and .js files loaded on the page along with linking your .html file via a CEWP?
Do you see any errors in the dev console (hit F12 > Console)?
I guess it has to do with jQuery being loaded multiple times – find out which of the solutions you load that loads jQuery first, and remove the call from the other solutions.