[Pkg-javascript-devel] Bug#977304: autosize.js: include add-module-exports plugin equivalent in .babelrc

[Pirate Praveen]

Package: autosize.js
Version: 4.0.2~dfsg1-4
Severity: important

I get this error is javascript console when running gitlab,

TypeError: a() is not a function. (In 'a()(this.textarea)', 'a()' is an 
instance of Object)

It seems to be generated by this code,

document.addEventListener("DOMContentLoaded", function() {
            Object(s.a)(function() {
                const t = document.querySelectorAll(".js-autosize");
                a()(t),
                a.a.update(t),
                t.forEach(function(t) {
                    return t.classList.add("js-autosize-initialized")
                })
            })
        });

I suspect this is caused by autosize.js build issues

https://salsa.debian.org/js-team/autosize.js/-/blob/master/debian/patches/add-babelrc.patch 
tries to replace some babel 6 modules with babel 7 equivalents.

But is it not include add-module-exports plugin 
https://salsa.debian.org/js-team/autosize.js/-/blob/master/build.js#L51

I think we should add this plugin also to babelrc and add 
node-babel-plugin-add-module-exports as build dependency.