Add Babel 5 plugin stripping "data-test-*" properties

[Turbo87]

This plugin will be added automatically to the Babel configuration of the host app and removes all data-test-* properties that it finds in JS code.

[marcoow]

awesome!

[pangratz]

So what happens if I have a:

myProperty: computed(function() {
  let myCustomHash = {
    "data-test-ignored": "yes or no"
  };

  doSomethingWithMyCustomHash(myCustomHash);
})

Then this hash would be touched as well, right?

[Turbo87]

@pangratz correct. I initially wrote it only for properties in .extend({ ... }), but then simplified it down. do you think your usage pattern is something that people are using and expecting not to be stripped?

[pangratz]

I would say it is a use case which shouldn't occur that often really. But if I would have such a use case, I would expect it not to be stripped I guess 🤔 . This is though.

Only restricting to .extend({}) is too narrow, because then mixins would be excluded for example.

[Turbo87]

FWIW you can still do this:

myProperty: computed(function() {
  let myCustomHash = {};
  myCustomHash["data-test-ignored"] = "yes or no";

  doSomethingWithMyCustomHash(myCustomHash);
})

[pangratz]

Yeah, good point.

I guess this is not really an issue since the use case I posted would be a really special one.

[marcoow]

@pangratz, @Turbo87: I think this is similar to the other thing we discussed - we can just go ahead and strip all properties that we find anywhere and then maybe narrow it down if people actually do run into problems.