title: Android latest MaterialCardView - white border how to remove it on api 19?
body: <p>When i run my code on api 28 i do not see this white border along the inner edges of the cardview. but on api 19 i get the following rendered:</p>
  
  <p><a href="https://i.stack.imgur.com/97kUS.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/97kUS.png" alt="enter image description here"></a></p>
  
  <p>My desire is for the color to entirely fill the cardview, and it should clip the corners so i keep the desired rounded effect. here is the simple demo code showing its not working:</p>
  
  <pre><code>    &lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;com.google.android.material.card.MaterialCardView xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      android:layout_width="300dp"
      android:layout_height="170dp"
      android:theme="@style/Theme.MaterialComponents.Light"
      app:cardBackgroundColor="@android:color/white"
      app:cardCornerRadius="8dp"
      app:cardElevation="4dp"
      app:rippleColor="@android:color/transparent"
      app:strokeWidth="0dp"&gt;
  
      &lt;ImageView
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:background="@android:color/holo_blue_dark" /&gt;
  
  &lt;/com.google.android.material.card.MaterialCardView&gt;
  </code></pre>
  
  <p>note: take a look at what it looks like when rendered on api 28, its exactly what i desire:</p>
  
  <p><a href="https://i.stack.imgur.com/IgYMo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IgYMo.png" alt="enter image description here"></a></p>
  
  <p>UPDATE: I ADJUSTED </p>
  
  <p>using app:cardPreventCornerOverlap="false" ,  but makes it not rounded. when i put a border around it its not contained in the border now. </p>
  
  <p>can someone suggest :</p>
  
  <p><a href="https://i.stack.imgur.com/CIvwK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CIvwK.png" alt="enter image description here"></a></p>