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This repository was archived by the owner on Mar 27, 2026. It is now read-only.
IE9 Flash callback issues #46
Description
I am having problems in IE9 with the Flash FileReader callbacks that I can not resolve. After trying to figure this out over a weekend I found what I think may be the problem. I am using the FileAPI polyfill to get the files list in IE9 (which I imagine should not be an issue). This code should work I believe unless I really am doing something wrong here.
Filereader options
filereader:
id: 'fileAPIProxy'
filereader: '/assets/libs/webshims/vendor/filereader/filereader.swf'
expressInstall: '/assets/libs/webshims/vendor/swfobject/expressinstall.swf'
Binding handler code (with feature detection removed)
isImage = (file) ->
file and typeof file.type isnt "undefined" and file.type.match('image.*') and file.name.match(/\.(gif|png|jpe?g)$/i)
$(element).fileReader(viewModel.filereader).on(
change: (event) ->
file = FileAPI.getFiles(event)[0]
if isImage(file)
reader = new FileReader()
reader.onload = (event) -> koPhoto.photo_uri(event.target.result)
reader.readAsDataURL(file)
)
The Flash callback that is issuing the JS error when readAsDataURL() is executed is below. This link references the Flash Callback problems in IE; http://zaalabs.com/2011/01/adobe-flash-externalinterface-issues-with-internet-explorer/
function __flash__addCallback(instance, name) {
instance[name] = function () {
return eval(instance.CallFunction("<invoke name=\""+name+"\" returntype=\"javascript\">" + __flash__argumentsToXML(arguments,0) + "</invoke>"));
}
}
Activity
matthiasleitner commentedon Oct 22, 2013
There should be no need to use the FileAPI polyfill.
Bind the change event in the callback function of the FileReader as described in the readme and you will be able to access the file using event.target.files.
Hope this helps.
dirty example working in IE9:
whatisboom commentedon May 8, 2015
resurrecting this... My callback is never firing, I get no feedback from the plugin even though debug mode is on.