<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have searched the <a href="https://github.com/mui-org/material-ui/issues">issues</a> of this repository and believe that this is not a duplicate.</li>
</ul>
<h2 dir="auto">Expected Behavior</h2>
<p dir="auto">"Optional" label in StepLabel should be localizable.</p>
<h2 dir="auto">Current Behavior</h2>
<p dir="auto">It's hardcoded with text constant "Optional" and cannot be replaced.</p>
<table role="table">
<thead>
<tr>
<th>Tech</th>
<th>Version</th>
</tr>
</thead>
<tbody>
<tr>
<td>Material-UI</td>
<td>1.0.0-beta.22</td>
</tr>
<tr>
<td>React</td>
<td>16.1.1</td>
</tr>
<tr>
<td>browser</td>
<td>any</td>
</tr>
</tbody>
</table>
<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have searched the <a href="https://github.com/callemall/material-ui/issues">issues</a> of this repository and believe that this is not a duplicate.</li>
</ul>
<h2 dir="auto">Expected Behavior</h2>
<p dir="auto">Scrolling the GridList component on desktop should result in a momemtum.<br>
Scrolling the GridList component on mobile should result in a momemtum.</p>
<h2 dir="auto">Current Behavior</h2>
<p dir="auto">Scrolling the GridList component on desktop result in a momemtum.<br>
Scrolling the GridList component on mobile doesn't result in a momemtum.</p>
<h2 dir="auto">Context</h2>
<p dir="auto">when scrolling the screen on mobile the user gets a momemtum.<br>
however when scrolling the GridList component there are no momemtum, and it results in a bad user experience.</p>
<h2 dir="auto">Your Environment</h2>
<p dir="auto">I have tested it on chrome mobile, latest version, on an iPhone 7.</p>
<p dir="auto">I could solve the issue by adding <code class="notranslate">WebkitOverflowScrolling: 'touch'</code> in <code class="notranslate">GridList.js</code></p>