I'm doing a course on Edx. In that episode the lecturer pronounces "thought" almost the same as "taught". The time point is 8:15, multiplication rule lecture 1.3, Stat_2.2x. 8:20 in this video on YouTube.
I've searched the pronunciation difference between these two words, in a tutorial on Youtube, the teacher doesn't mention this case.
So, do you sometimes pronounce "thought" the same as "taught"? Is it allowed to ignore "h" sometimes informally?