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POJSON.parse() silently fails
 

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    <p>I'm working on a Windows desktop application, which contains an object of type System::Windows::Forms::WebBrowser. The application processes some performance data and displays an HTML page with various graphs (histograms, pie charts etc).</p> <p>It works as follows:</p> <ul> <li>The application generates an HTML file on a local temp path (e.g., .../local/path/myfile.html)</li> <li><p>The application's WebBrowser object navigates to the file generated:</p> <p>webBrowser1->Navigate(".../local/path/myfile.html")</p></li> <li><p>jQuery and some other plugins (e.g., jqPlot) are used to create various graphs and myfile.html is rendered within the applicaion</p></li> </ul> <p><strong>myfile.html contains a section of code:</strong></p> <pre><code>&lt;div id="frame-time-histograms"&gt; &lt;div id="frame-time-histogram-1"&gt; &lt;div id="frame-time-histogram-1-target-plot" class="histogram-target" style="height:250px; width:900px;"&gt;&lt;/div&gt; &lt;div id="frame-time-histogram-1-controller-plot" class="histogram-controller" style="height:100px; width:900px;"&gt;&lt;/div&gt; &lt;script id="frame-time-histogram-1-data" class="histogram-data" type="text/plain"&gt; [{"type" : "Type 1", "shortest" : 12, "longest" : 74}, [[0, 0], [1, 12.632], [2, 16.619], [3, 16.592], [4, 16.664], [5, 16.586]]] &lt;/script&gt; &lt;/div&gt; &lt;div id="frame-time-histogram-2"&gt; &lt;div id="frame-time-histogram-2-target-plot" class="histogram-target" style="height:250px; width:900px;"&gt;&lt;/div&gt; &lt;div id="frame-time-histogram-2-controller-plot" class="histogram-controller" style="height:100px; width:900px;"&gt;&lt;/div&gt; &lt;script id="frame-time-histogram-2-data" class="histogram-data" type="text/plain"&gt; [{"type" : "Type 2", "shortest" : 24, "longest" : 19}, [[0, 0], [1, 20.145], [2, 20.091], [3, 20.301], [4, 20.109], [5, 20.087]]] &lt;/script&gt; &lt;/div&gt; &lt;/div&gt; </code></pre> <p>Note: Here I'm using script tags as data containers for my histograms.</p> <p><strong>My JavaScript file contains a section of code:</strong></p> <pre><code>var histograms = $('div#frame-time-histograms'); histograms.children().each(function(index) { var histogramTargetId = $(this).find('div.histogram-target').attr('id'); var histogramControllerId = $(this).find('div.histogram-controller').attr('id'); var histogramData = JSON.parse($(this).find('script.histogram-data').html()); </code></pre> <p>However JSON.parse() doesn't seem to do anything. I've added alert("hello") to before and after this line but only the first one is executed.</p> <p>If I go to the temp path and double click on myfile.html, JSON.parse() works fine. I can see all the graphs in my web browser (Chrome, FF and IE).</p> <p>Would anybody be able to tell me what I'm doing wrong?</p>
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    1. COIf only the first `alert` is called then the problem is that JSON is failing. Is there some sort of a JSON lib available and working?
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    2. CO@Kirstein - Thanks for your response. It's turned out that the WebBrowser I'm using within the application is < IE8 and it doesn't have native JSON support. If I include the Crockford's JSON2 parser, the histograms are displayed correctly. i.e., <script language="javascript" type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/json2/20110223/json2.js"></script>
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