Created attachment 8831244 [details] example web extension for duplication User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:51.0) Gecko/20100101 Firefox/51.0 Build ID: 20170118123726 Steps to reproduce: 1. Load Temporary Add-on 2. Click toolbar icon 3. Click upload icon 4. choose a file and click 'Open' Actual results: After choosing the file to upload, the 'change' event was triggered for the file input DOM element, then was handled by the popup script. When exciting that function to send a message to the background script, the console showed the error 'this.cloneScope is null' and the function just exited. This occurred on line 18 in popup.js. Expected results: The 'change' event would be called and handled by the popup script, then a message including the object url of the files will be sent to the background script message handler.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 2 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1292701
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