This question already has an answer here:
I have seen, on the website of an illustrious university, the use of 'however' which I always thought to be wrong. It is used twice in the same way, which makes me think it isn't a typo.
Changing the context a little, the sentence is:
You are not required to take exams for this subject, however coursework is continually assessed.
The rule for the punctuation as I know it is:
[...]. However, [...] (We didn't study. However, we passed.)
[...]; however, [...] (We didn't study; however, we passed.)
[...], however, verb [....] (We didn't study. We, however, passed)
[...], however. (We didn't study. We passed, however.)
The only time this isn't true is when 'however' means 'no matter how' (We will not pass however hard we study.)
My question is this: Is the website wrong, or has this punctuation usage now moved on enough that it is now seen as somewhat pedantic to worry about it if the meaning is clear?
There are numerous answers on the site about the standard rule, and this is not exactly my question. I would like to know if anyone is aware of a shift in modern usage that would mean publishers, editors etc. nowadays accept the removal of the superfluous punctuation if the meaning remains clear.