Actually cancel requests.
Actually cancel requests.

srawlins/streamy-dart,ronlobo/streamy-dart,google/streamy-dart,ronlobo/streamy-dart,google/streamy-dart,srawlins/streamy-dart,google/streamy-dart,ronlobo/streamy-dart,srawlins/streamy-dart,google/streamy-dart,srawlins/streamy-dart,ronlobo/streamy-dart