We're currently using an aura component with the
<force:canvasApp> component to embed our Canvas App. As mentioned in the answer to this post,
Sfdc.canvas is not fully exposed to the aura component. I've attempted to load
canvas-all.js into the aura component using
Sfdc.canvas.parent to show up (even though the browser console shows
Sfdc.canvas.parent as existing).
Does anyone have a working example of firing a custom canvas app event via
Sfdc.canvas.parent.publish from an aura component into the embedded Canvas App? Any other way to fire an event from Lightning to the Canvas App?
Update (Edit 1)
As suggested by @rzr below, using
postMessage() from the outer iframe in the Canvas App would do the job (you can see an example by @studds here and
postMessage() in action to communicate between Lightning and a VF page here). Only problem is that it is seemingly impossible to touch the DOM inside the
<force:canvasApp> component as per Lightning Locker DOM security.
Does anyone know how to send any communications from Lightning to the embedded