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copied!<p>In my opinion, the problem lies in the <a href="http://cn.clickable.net/js/cct.js" rel="nofollow">http://cn.clickable.net/js/cct.js</a> script, and specifically in the <code>IsIEPlugin</code> method of the <code>__cct_tracker</code> class:<br></p> <pre><code>this.IsIEPlugin = function (e) { var t = !1; return document.write('<SCRIPT LANGUAGE=VBScript>\n on error resume next \n pluginFound = IsObject(CreateObject("' + e + '")) </SCR' + "IPT>\n"), t ? 1 : 0 } </code></pre> <p>This method is called several times, with different arguments:<br></p> <pre><code>this.pixelRequestParams.cctDir = this.IsIEPlugin("SWCtl.SWCtl.1"), this.pixelRequestParams.cctFlashPlugin = this.IsIEPlugin("ShockwaveFlash.ShockwaveFlash.1"); if (this.IsIEPlugin("PDF.PdfCtrl.1") == 1 || this.IsIEPlugin("PDF.PdfCtrl.5") == 1 || this.IsIEPlugin("PDF.PdfCtrl.6") == 1) this.pixelRequestParams.cctPdf = 1; this.pixelRequestParams.cctQuickTime = this.IsIEPlugin("Quicktime.Quicktime"), this.pixelRequestParams.cctRealPlayer = this.IsIEPlugin("rmocx.RealPlayer G2 Control.1"), this.pixelRequestParams.cctWmPlayer = this.IsIEPlugin("wmplayer.ocx") </code></pre> <p>I suppose (even I'm not sure) that "cct" stands for "Clickable Conversion Tracking", so it must be some sort of tracking code.<br> After further investigations, I've determined that the "cct.js" script gets loaded by the <a href="http://support.google.com/tagmanager/answer/2772432?hl=en" rel="nofollow">Google Tag Manager</a> (GTM) script <a href="http://www.googletagmanager.com/gtm.js?id=GTM-X9BN" rel="nofollow">http://www.googletagmanager.com/gtm.js</a>.<br> So, if I'm not wrong, by removing the GTM code snippet from your HTML page, you should be able to solve the problem.<br> It seems that the VBSCRIPT code dynamically injected by the GTM JavaScript code sometimes is not executed, but don't ask me why, since I don't really know.</p>

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