polymer 2.0 upgrade guide fire equivalent missing cancellable

[davidmaxwaterman]

IINM, the polymer fire() method also sets the cancellable flag to true. This tripped me up in a recent upgrade since the code was testing defaultPrevented which was always false, even though preventDefault() had been called.

API docs say that the default for cancelable in the fire method is false https://www.polymer-project.org/1.0/docs/api/#method-fire ... this matches up with the Web API defaults for Event and CustomEvent as far as i can work out. I'm curious what caused you to think cancelable gets set to true? If you can point it out in the docs or give a code sample I will try to clear up any confusion, or raise a bug if needed :)