"Unexpected token" with webpack after version 3.10.0

[mix359]

Describe the bug
Using the "Select.vue" component directly in my components I can't compile with webpack because of the error:
"Module parse failed: Unexpected token (26:32)" made by the ?. operator used in line 26 of the file "src/mixins/pointerScroll.js"
This change seam to be introduced with the MR #1160

I've checked something about that operator and at the moment it's seam is not currently fully supported by webpack without some workaround. (webpack/webpack#10227)

Can I suggest to not use that for the moment, until is fully supported by webpack?
Or at least make a mention somewhere about the package to be used in the package.json to make this work?

At the moment I will probably downgrade to a version < 3.10.0 to avoid the problem.

Thanks
Cheers Mix :)

[sagalbot]

Thanks for reporting! This is a bit strange because ?. isn't actually present in the compiled dist, just the source files. How are you loading the component?