Error: PathObserver is not defined

[danieleliberti]

The bug occurs in Firefox and Safari.
In chrome everything works correctly.

[jmesserly]

any more info? The object is exported here:
https://github.com/Polymer/observe-js/blob/master/src/observe.js#L1706

it's just a plain JS library, and the tests work on all of those browsers... I guess something is wrong with your setup, but not sure what based on that.