title: Sveltestrap Tooltip generates ReferenceError: process not defined (in createPopper.js)
body: <p>I'm trying to use Tooltip with Svelte and SvelteStrap and need a hand :)</p>
  <p>Minimal working example is:</p>
  <pre><code>&lt;script&gt;
      import {
          Button,
          Tooltip,
      } from 'sveltestrap';
  &lt;/script&gt;
  &lt;Button id=&quot;btntest&quot;&gt;test&lt;/Button&gt;
  &lt;Tooltip target=&quot;btntest&quot; placement=&quot;top&quot; /&gt;
  </code></pre>
  <p>After hovering the button, it  shows a tooltip (not exactly properly aligned) and immediatelly throws an error:</p>
  <pre><code>Uncaught (in promise) ReferenceError: process is not defined
      at Object.setOptions (createPopper.js:80)
      at createPopper (createPopper.js:214)
      at Object.$$self.$$.update (Tooltip.svelte:29)
      at update (index.mjs:760)
      at flush (index.mjs:732)
  
  
  
  Package.json:
  &quot;devDependencies&quot;: {
      &quot;@rollup/plugin-commonjs&quot;: &quot;^17.0.0&quot;,
      &quot;@rollup/plugin-node-resolve&quot;: &quot;^11.0.0&quot;,
      &quot;rollup&quot;: &quot;^2.3.4&quot;,
      &quot;rollup-plugin-css-only&quot;: &quot;^3.1.0&quot;,
      &quot;rollup-plugin-livereload&quot;: &quot;^2.0.0&quot;,
      &quot;rollup-plugin-svelte&quot;: &quot;^7.0.0&quot;,
      &quot;rollup-plugin-terser&quot;: &quot;^7.0.0&quot;,
      &quot;svelte&quot;: &quot;^3.37.0&quot;
    },
    &quot;dependencies&quot;: {
      &quot;sirv-cli&quot;: &quot;^1.0.0&quot;,
      &quot;sveltestrap&quot;: &quot;^3.14.0&quot;
    }
  </code></pre>
  <p>What shall I do to make this work? :)</p>