I have an application with a simple modal that I started with one of the standard example templates:

<template>
  <div>
    <mdb-btn color="primary" @click.native="modal = true">Launch demo modal</mdb-btn>
    <mdb-modal :show="modal" @close="modal = false">
      <mdb-modal-header>
        <mdb-modal-title>Modal title</mdb-modal-title>
      </mdb-modal-header>
      <mdb-modal-body>...</mdb-modal-body>
      <mdb-modal-footer>
        <mdb-btn color="secondary" @click.native="modal = false">Close</mdb-btn>
        <mdb-btn color="primary">Save changes</mdb-btn>
      </mdb-modal-footer>
    </mdb-modal>
  </div>
</template>

In your demo when I launch that modal I can hit "ESC" and the modal closes. When I have that same code in my application pressing "ESC" does nothing. Also, in troubleshooting, I notice that in the demo code the modal header renders out to:

<div class="modal-header">
            <h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
            <button type="button" class="close" data-dismiss="modal" aria-label="Close">
              <span aria-hidden="true">×</span>
            </button>
</div>

where the "X" on the top right renders to a <button> tag. But in my code AND in the modal source, the header renders the "X" as an <a> tag. My Code from above template:

<div data-v-13d1e037="" class="text-center modal-header">
    <h5 class="w-100 modal-title font-weight-bold" data-v-13d1e037="">
        Modal title
    </h5>
    <a data-v-13d1e037="" flat="" class="close">×</a>
</div>

Which matches the template code (in node_modules\mdbvue\src\components\Modals\ModalHeader.vue) as I would expect, but NOT what I'm seeing in the source of the demo module.

<template>
  <component :is="tag" :class="className">
    <slot></slot>
    <a v-if="close" flat class="close" @click.prevent="away">&times;</a>
  </component>
</template>

I realize that without my full webpack build process it's probably impossible to figure out my mistake, but any suggestions on where I might have gone wrong to get such a simple component to not look/work like yours would be great! (I'm using the mdbvue-6.7.1.tgz file in my build)

Thanks