In my nuxt.js ("nuxt": "^2.15.7") web app I am using Facebook share button as described in this full code example.

When application loads for the first time, then facebook share button is rendered correctly. Unfortunately, when I navigate to another route and/or navigate back, then facebook share button disappears. Why this happens and how to fix it?

I have tried to implement following solutions including offered by the @Cbroe and @kissu:

1. Facebook share button dissapear after updatePanel
2. How to add a 3rd party script code into Nuxt
3. Facebook social plug-in not showing up when added dynamically

Unfortunately, above offered solutions doesn't solved my problem.

What is interesting, that Vue developer tools in Chrome browser indicates, that component <FbShareButton> is present, but it doesn't show up on the page.

There is my initial code:

I have created nuxt plugin loadFacebookSdk.js to load Facebook SDK into the app, there is the code:

Vue.prototype.$loadFacebookSDK = async (d, s, id) => {
    var js = d.getElementsByTagName(s)[0]
    var fjs = d.getElementsByTagName(s)[0]
    if (d.getElementById(id)) {
        return
    }
    js = d.createElement(s)
    js.id = id
    js.src = "https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v3.0"
    fjs.parentNode.insertBefore(js, fjs)
}

Then registered above plugin in the nuxt.config.js as following:

plugins: [
    { src: "~/plugins/loadFacebookSdk.js", mode: 'client' }
  ]

And finally created FbShareButton.vue component to load facebook SDK and render facebook share button:

<template>
    <div>
        <div id="fb-root"></div>
        <div class="fb-share-button" 
                data-href="https://developers.facebook.com/docs/plugins/" 
                data-layout="button" 
                data-size="small"
                >
        </div>
    </div>    
</template>

<script>
export default {
    async created () {
        if (process.client) {
            await this.$loadFacebookSDK(document, 'script', 'facebook-jssdk')
        }
    }
}
</script>