This happens frequently -- in some circumstances most of the time, in others, occasionally. I don't understand exactly why.
I'm using multiple iframes, and AJax (not the stuff in prototype, at least not at the moment). I frequently get an error dialog, which through painful tracing appears to happen somewhere either in or shortly prior to delivery of the readystatechange event: --- begin dialog One or more ActiveX controls could not be displayed because either: 1) Your current security settings prohibit running ActiveX controls on this page, or 2) You have blocked a publisher of one of the controls As a result, the page might not display correctly. --- end dialog I have no ActiveX controls, other than the native Ajax XMLHttpRequest object (I removed the legacy ActiveXObject versions in the process of narrowing this down). After a long session of divide-and-conquer elimination, I've traced this down to the function checkDeficiency(tagName), apparently applied to 'object'. (I didn't circle back and verify whether it also happens with 'applet'). A quick workaround, probably not ideal, is to add this line to the Prototype.Browser object: IE8: !!(navigator.userAgent.indexOf('Trident/' > -1)), and this line as the first line of checkDeficiency(): // Makes you get an ActiveX warning, on page unload? if (Prototype.Browser.IE8) return false; I don't understand exactly what deficiency is being worked around here, so I don't know if there are any consequences in short- circuiting this test. I'm also not completely sure of my characterization of when and where this dialog is triggered. However, it really does not seem to happen on initial page load? However, this patch does seem to reliably eliminate the error dialog. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Prototype: Core" group. To post to this group, send email to firstname.lastname@example.org To unsubscribe from this group, send email to prototype-core-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/prototype-core?hl=en -~----------~----~----~----~------~----~------~--~---