Reference to HTMLLinkElement in Polymer.import callback

[tomalec]

I'm trying to use Polymer.import helper to dynamically load some documents with Polymer Elements nested deeper inside. With native HTMLLinkElement#onload I could easyli access imported content to use it:

link.onload =  function(){
  // Insert template into DOM.
  var template = this.import.querySelector("template");

live example here
And it works like charm, except the problem with

Attributes on my-element were data bound prior to Polymer upgrading the element. This may result in incorrect binding types.

As onload may be called before Polymer upgrades the polymer elements. So I need either to hack it with Polymer's internal queue or at least with Polymer.whenReady like here or finally use Polymer.import which seems nice and clean.
However it does not give a reference to imported document neither with this nor via arguments.
So I need to write every time:

Polymer.import(["/my/path/here"], function(){
  var link = document.querySelector('link[href="/my/path/here"]');
  var template = link.import.querySelector("template");

live
What doesn't look that nice, and may hit the performance.

I suggest adding array of corresponding HTMLLinkElements as callback argument:

Polymer.import(["/my/path/here"], function(links){
  var template = links[0].import.querySelector("template");

So Polymer.import could be used as and alternative to native .onload.

[ebidel]

+1. In a current project, I've also been using document.querySelector to get back the import that was added but Polymer.import should just pass this info in the callback.

@sorvell @sjmiles is this something we can add?

[tomalec]

Thanks.