Results 3 issues of progand

I've encountered a bug. My code: ``` ... remove: t(function*() { try { yield fetch('http://domain.not.exists') } catch (e) { this.handleError(e) } }).flow('drop'), ... {{remove.isActive}} ``` Every time `fetch('http://domain.not.exists') ` throws...

Reading source code I figured out that it's possible to change slider values through mutating `start` option. Can you add an example of changing slider values?

Every time I try to enable rollbar in `environment.js`: ``` rollbar: { enabled: true } ``` I have an error in fastboot: ``` App is being served by FastBoot /home/user/projects/outingtravel/web/tmp/funnel-output_path-PiiPro2c.tmp/assets/vendor.js:339...