nested single file component parsing error when containing js regex?

[eisfair]

I experience some strange behavior when there is a nested component with some regex.

The Problem: express server sends no response, but also throws no error.

You may try to reproduce this with an easy setup together with express-vue:

The route:

router.get('/', function(req, res) {
    res.renderVue('index', {});
});

#index.vue
<template>
    <div></div>
</template>

<script>
    import NestedComponent from 'nestedComponent.vue';
</script>

<style>
</style>

#nestedComponent.vue
<template>
    <div></div>
</template>

<style>
</style>

<script>
    export default {
        mounted: function() {
            let search = "".replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
        }
    }
</script>

I could track down the problem to the following:
in lib/index.js the following code gets called and waits for the promise to resolve.

//lib/index.js
Utils.setupComponent(path.join(Options.rootPath, componentPath), Options, _this.Cache)

In lib/utils/component.js the resolve in line 14 gets called but somehow never really makes it back to lib/index.js where it should proceed with .then

//lib/utils/component.js
'use strict';

var Models = require('../models');
var Parser = require('../parser');
var PathUtils = require('./checkPathUtils');

var types = new Models.Types();

function setupComponent(componentPath, defaults, Cache) {
    return new Promise(function (resolve, reject) {
        var vueFile = componentPath.includes('.vue') ? componentPath : componentPath + '.vue';
        PathUtils.getCorrectPathForFile(vueFile, 'view', defaults, Cache).then(function (path) {
            Parser.componentParser(path.path, defaults, types.COMPONENT, Cache).then(function (component) {
 -->               resolve(component);
            }).catch(function (error) {
                reject(error);
            });
        }).catch(function (error) {
            reject(error);
        });
    });
}

module.exports = setupComponent;

That's the last point where i can keep track of the debugging session.

Best regards,
Christian