2 ms·
I'm just finishing up a year+ project to make an old IE7 app work on Chrome/Firefox. IE7 is the oldest version that IE11 supports in compatability mode. As it s
by le-mark 8y ago
I'm just finishing up a year+ project to make an old IE7 app work on Chrome/Firefox. IE7 is the oldest version that IE11 supports in compatability mode. As it stood, this old app was actually quite impressive. It was a true SPA before SPAs were a thing (2005 or so). It used all the Microsoft specific tech; DHTML, behaviors, htc components, soap/xml, client side xpath/xsl/xslt. Thankfully only a little activex that was easy to replace. Rewriting wasn't an option, but even putting in shims and reorganizing the code was a major effort.
Realistically, that's a worst case scenario, and I think it would be a long time before firefox/Chrome diverged to that level, if at all.
But the horror, oh the horror....