<p dir="auto">Setting a custom data attribute such as data-test="" works, whereas data-0="" would fail.<br>
Is this expected behaviour?</p>
<p dir="auto">If the data attribute is formatted as <code class="notranslate">data-{number}-*</code>, then it won't be rendered into the HTML.</p>
<p dir="auto">Example:<br>
<a href="http://jsfiddle.net/1etmp5fn/" rel="nofollow">http://jsfiddle.net/1etmp5fn/</a></p>
<p dir="auto">Notice that <code class="notranslate">data-100-bucks</code> does not show up in the rendered result, while <code class="notranslate">data-bucks-100</code> does.</p>