Description

only render has feature for modifyGeneratedHtml, it is missing from the other two

I think the issue here is we should consolidate the render function a bit more.

also with modifyGeneratedHtml, I think there is no need for cacheMsg in InMemoryCacheHandler

We can have a default modifyGeneratedHtml function just like cacheMsg

Notes

I will try to fix this in my fork, if you like the proposed solution, I will make a PR.

Sorry making a bunch of changes in a short time, I am trying to port our existing feature to this library. My goal is trying to match the upstream as much as possible.