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    <body><span class="vcard"><a class="email" href="mailto:ggaren&#64;apple.com" title="Geoffrey Garen &lt;ggaren&#64;apple.com&gt;"> <span class="fn">Geoffrey Garen</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [JSC] implement async functions proposal"
   href="https://bugs.webkit.org/show_bug.cgi?id=156147">bug 156147</a>
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            <th>What</th>
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               &nbsp;
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           <td>ggaren&#64;apple.com
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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [JSC] implement async functions proposal"
   href="https://bugs.webkit.org/show_bug.cgi?id=156147#c21">Comment # 21</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [JSC] implement async functions proposal"
   href="https://bugs.webkit.org/show_bug.cgi?id=156147">bug 156147</a>
              from <span class="vcard"><a class="email" href="mailto:ggaren&#64;apple.com" title="Geoffrey Garen &lt;ggaren&#64;apple.com&gt;"> <span class="fn">Geoffrey Garen</span></a>
</span></b>
        <pre>Because this is a bleeding-edge language feature, I think we need a runtime flag to enable / disable it. For example, we will probably disable it in the Safari Technology Preview until it's more mature.

It's OK if the flag doesn't cause all the code to be compiled out. The goal is just to avoid exposing a language feature to the web before it's mature.

(There was some discussion on webkit-dev recently about runtime flags for new features. I think what I&quot;m saying here is consistent with that discussion.)</pre>
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