SUMMARY:
This issue has been classified as a defect by Strategy. The impact is limited to Strategy Web 10.5 product when trying to export a large report to PDF or Excel. A solution/code fix for this issue is available in current releases.
SYMPTOM:
When trying to export a large report in Strategy Web 10.5, there are two lines of code shown at the top of the screen, even if the export works successfully:

if(typeof(Strategy) != 'undefined' && Strategy.descriptors) {Strategy.descriptors.addDescriptors("2947Click here for more details.");} onload="if (typeof(document.readyState) == 'undefined') document.readyState = 'complete';Strategy.eventManager.executeFunction('Strategy.eventManager.onload()');" onBeforeUnload="bExecute = false; window.clearTimeout(sTimeOutID);" onUnload="bExecute = false; window.clearTimeout(sTimeOutID);">CAUSE:
This is an identified defect in Strategy Web 10.5.
ACTION:
This issue has been addressed in Strategy Web 10.6. Upgrade to this version to take advantage of this fix.