D3.js: "Uncaught SyntaxError: Unexpected token ILLEGAL"? <p>I've just <a href="http://d3js.org/d3.v3.zip">downloaded D3.js from d3js.org</a> (link to zip file), unzipped it, and referenced it in the following HTML page: </p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;title&gt;D3 Sandbox&lt;/title&gt; &lt;style&gt; &lt;/head&gt; &lt;body&gt; &lt;script src="/d3.v3.js"&gt;&lt;/script&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>But when I load this page, my console (in Chrome) is giving me this error: </p> <pre><code>Uncaught SyntaxError: Unexpected token ILLEGAL: line 2 </code></pre> <p>It doesn't like the <a href="https://github.com/mbostock/d3/blob/master/d3.js#L2">pi and e symbols at the start of the file</a>. Errrr... what can I do about this? I am serving the file with python's SimpleHTTPServer.</p> <p>Update: yes I know I can just link to a CDN version, but I would prefer to serve the file locally. </p>