meta data is doubled/tripled at runtime

[codeofsumit]

Might be related to the closed issue #665.

It was fixed for the description tag - the issue seems to persist for other meta tags:

// config.js
  head: [
    ['meta', { name: 'twitter:card', content: 'summary_large_image' }],
    ['meta', { name: 'twitter:site', content: '@TweetsOfSumit' }],
    ['meta', { name: 'twitter:creator', content: '@TweetsOfSumit' }],
    ['meta', { property: 'og:type', content: 'article' }],
    ['meta', { property: 'og:title', content: 'Raum.sh' }],
    ['meta', { property: 'og:site_name', content: 'Raum.sh' }],
    ['meta', { property: 'og:url', content: 'https://raum.sh' }],
    [
      'meta',
      {
        property: 'og:image',
        content: 'https://raumsh-idpjzzfqhw.now.sh/images/speaking.jpg',
      },
    ],
  ],

---
# Markdown Front Matter
layout: Post
published: 2018-08-07
title: Blog is online 🙋‍♂️
meta:
  - property: og:title
    content: Blog is online 🙋‍♂️
  - name: description
    content: I finally decided to use VuePress as a blog engine.
  - name: keywords
    content: Web Developer Developer Relations Development Blog
---

(yup, social meta tags are a bit of a chaos but that's a different issue)

Output:

  <title>Blog is online 🙋‍♂️ | Raum.sh</title>
  <meta name="description" content="I finally decided to use VuePress as a blog engine.">
  <meta name="twitter:card" content="summary_large_image">
  <meta name="twitter:site" content="@TweetsOfSumit">
  <meta name="twitter:creator" content="@TweetsOfSumit">
  <meta property="og:type" content="article">
  <meta property="og:title" content="Raum.sh">
  <meta property="og:site_name" content="Raum.sh">
  <meta property="og:url" content="https://raum.sh">
  <meta property="og:image" content="https://raumsh-idpjzzfqhw.now.sh/images/speaking.jpg">
  <meta name="title" content="Blog is online 🙋‍♂️">
  <meta property="og:title" content="Blog is online 🙋‍♂️">
  <meta name="keywords" content="Web Developer Developer Relations Development Blog">

Demo:
https://raum.sh/blog/BlogLaunch.html

Here, the meta tag og:title is present three times.

[fengkuangdexiaomifeng]

The blame-it-on-Lehman story leads to a dangerous complacency

[lorisleiva]

👋 Same problem here. I've created an issue on my vuepress seo plugin that demonstrates this duplication.

In production, the bottom batch of meta tags are updated when we switch pages but the top batch stays static and matches the page that we originally loaded.

I am using vuepress@1.0.0-alpha.32. I hope this helps.

[samanthaming]

I'm having the same problem too @lorisleiva 😣. I'm setting the metadata in my own custom plugin, programmatically setting the frontmatter object. Hope this get resolved 🤞