<blockquote>
<p dir="auto">Issue originally made by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/fergaldoyle/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/fergaldoyle">@fergaldoyle</a></p>
</blockquote>
<h3 dir="auto">Bug information</h3>
<ul dir="auto">
<li><strong>Babel version:</strong> 6.2.0</li>
<li><strong>Node version:</strong> v4.2.1</li>
<li><strong>npm version:</strong> 2.14.7</li>
</ul>
<h3 dir="auto">Description</h3>
<p dir="auto">Would it be possible to add a commonStrict option like there was in Babel 5?</p>
<p dir="auto">I'm finding my files are ~3kb bigger after moving from Babel 5 to Babel 6.  My Babel 5 config had modules: 'commonStrict' which reduced file size.</p>
<p dir="auto">I've just updated to 3.6.0. The following gives the error "duplicate declaration", but Is it intended?</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="import {A as A_} from 'module';

class A {
}"><pre class="notranslate"><code class="notranslate">import {A as A_} from 'module';

class A {
}
</code></pre></div>
<p dir="auto">This is a little continuation of <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="57411260" data-permission-text="Title is private" data-url="https://github.com/babel/babel/issues/759" data-hovercard-type="issue" data-hovercard-url="/babel/babel/issues/759/hovercard" href="https://github.com/babel/babel/issues/759">#759</a>, sorry if it's a rather obvious issue, I'm not super-familiar with the spec.</p>