Material Design Lite滚动条滞后/拖动问题

Question

问题：

无论何时用户加载页面，刷新页面，我们都会观察到滚动条的拖动行为。在线发布的getmdl滚动条代码复制了该问题。

经过测试的浏览器：Chrome，IE，Firefox

代码：

enter code here<main class="mdl-layout__content">
<section class="mdl-layout__tab-panel is-active" id="scroll-tab-1">
  <div class="page-content"><!-- Your content goes here --></div>
</section>
<section class="mdl-layout__tab-panel" id="scroll-tab-2">
  <div class="page-content"><!-- Your content goes here --></div>
</section>
<section class="mdl-layout__tab-panel" id="scroll-tab-3">
  <div class="page-content"><!-- Your content goes here --></div>
</section>
<section class="mdl-layout__tab-panel" id="scroll-tab-4">
  <div class="page-content"><!-- Your content goes here --></div>
</section>
<section class="mdl-layout__tab-panel" id="scroll-tab-5">
  <div class="page-content"><!-- Your content goes here --></div>
</section>
<section class="mdl-layout__tab-panel" id="scroll-tab-6">
  <div class="page-content"><!-- Your content goes here --></div>
</section>

屏幕截图：

：

我也在github上发布了，任何帮助将不胜感激 https://github.com/google/material-design-lite/issues/5222