title: Doesn't Azure AD B2C Page UI Customization Support Bootstrap?
body: <p>I'm trying to customize the page UI on Azure AD B2C unified sign in/sign up page.</p>
  
  <p>I was able to create my template and upload all the assets i.e. html page, images and css to my Azure Blob Storage container with the right <code>CORS</code> settings.</p>
  
  <p>When I pull up the page, however, it looks <strong>absolutely HORRIBLE!</strong> It doesn't seem to support Bootstrap. I read somewhere that no JavaScript is allowed. Is that the reason for this?</p>
  
  <p>Once I upload my custom HTML page, Azure AD B2C seems to be stripping off a lot of the design elements necessary for my customization such as <code>id</code> and <code>style</code> in my <code>body</code> tag -- see below:</p>
  
  <pre><code>&lt;!-- Omitted for brevity --&gt;
  &lt;body id="my-login-class" style="url: ('https://myazurestorage.blob.core.windows.net/my-container/my-bg-image.jpg')"&gt;
  
     &lt;div id="some-important-id" class="my-important-class"&gt;
        &lt;div class="col-xs-8"&gt;
            &lt;div&gt;Some important message&lt;/div&gt;
        &lt;div&gt;
        &lt;div class="col-xs-4"&gt;
           &lt;div id="api"&gt;
           &lt;/div&gt;
        &lt;/div&gt;
     &lt;/div&gt;
  
  &lt;/body&gt;
  </code></pre>
  
  <p>When I inspect the page source once my custom page is rendered, I see that all my classes and Id's are removed along with Bootstrap references e.g. <code>css</code> and <code>js</code>.</p>
  
  <p>Am I getting this right? No Bootstrap which means Azure AD B2C only supports customization of the most basic kind?</p>