This little piece, which is from the Jewish Chronicle via the JTA newswire, states that a man in Warsaw tried to divorce his wife on grounds that she did not dress tznius. She wore a sheitel, but it was cut in a 'boyish bob.' And her sleeves were too short. No dice, ruled the rabbi.
And in the tarte de-sasrei department, here is another JTA piece from 1924, recounting how an antisemitic French newspaper declared that the new fashion of the Flapper's bob is a Jewish conspiracy modeled on the sheitel and that head-shaving for gentile women was no doubt soon in store. I guess the aforementioned rav agreed with the Libre Parole.