LONDON (Reuters) – Apple (NASDAQ:) may be holding back smartphone browser innovation, according to a report by Britain’s competition regulator, which recommended investigating the Apple and Google (NASDAQ:) duopoly in mobile ecosystems with a recent mandate.

The Competition and Markets Authority (CMA) said on Friday it had made a preliminary finding that mobile browser markets were not working well for British businesses and millions of phone users.

The CMA’s independent inquiry group also proposed that no further action be taken on cloud gaming, given that the main concerns had been addressed.