message: getting rid of canonical tag until it can work reliably
diff: <link rel="icon" type="image/png" href="/docs/assets/img/meta/favicon-32x32.png" sizes="32x32">
  <link rel="icon" type="image/png" href="/docs/assets/img/meta/favicon-96x96.png" sizes="96x96">
  - <link rel="canonical" href="https://ionicframework.com/docs/" class="url" />
  + <link rel="canonical-test" href="https://ionicframework.com/docs/" class="url" />
  <link rel="alternate" hreflang="x-default" href="https://ionicframework.com/docs/" class="url" />
  <link rel="alternate" hreflang="jp" href="https://ionicframework.com/jp/docs/" class="url" />
  