even though morphos glue code is mostly separated from the webkit engine in a separate set of files, heck a different dir, there is still enough, that is interwoven and one needs to know a lot about how these interface. as you see even morphos team seems only to be able to fix their old version probably partly backporting bits and pieces from a newer engine.
speaking as a noob, this is all a whole lot of mess when debugging and stuff and we have nit even proper meand to do that with such a huge apps it seems.