title: NuxtJs SSR configuration
body: <p>i have a question about nuxt js SSR configuration. I think nuxtjs is SSR in default. But SEO experts say my project is CSR. I make some research and learn that nuxt have modes <strong>'spa'</strong> and <strong>'universal'</strong> In my <code>nuxt.config.js</code> file i found this line of code: </p>
  
  <pre><code>export default {
        mode: 'spa', 
  ....
  </code></pre>
  
  <p>if i will make it 'universal' my project will work SSR? or i need to make extra some configurations? </p>
  
  <pre><code>  export default {
            mode: 'universal', 
      ....
  </code></pre>