check if you use Require feature="wave-preview"
recently it is known to break getState() in Chrome.

On 10 дек, 05:50, dirtside <[email protected]> wrote:
> I'm developing a Wave gadget. It sets a callback function for
> setStateCallback() and setParticipantCallback(), which apparently gets
> called immediately, three times (I'm guessing once for the
> setStateCallback and once each for the two participants).
>
> The callback function (updateDisplay) calls another internal function
> which calls wave.getState(). Well, the first time it calls
> wave.getState() I get a JS error saying that wave.getState() is null,
> which I guess means it hasn't been initialized yet. So my question is,
> why is wave calling the callbacks before the wave object is fully
> initialized, or am I doing something wrong?

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