I know this is an old post, but I am experiencing the same issue. However I am a noob with web mapping applications, but tying to learn. I am able to download the web map application to my desktop as a zip file from arconline and modify the code as you suggest, but I am not seeing how to re upload it except to host it, is that what you are doing or is there a way to upload the web mapping application to ArcGIS online, or at least the widget. thx, tim
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