Open Bug 1385958 Opened 3 years ago Updated 3 years ago
JS - files drag-n-drop not working properly with e10s
User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:56.0) Gecko/20100101 Firefox/56.0 Build ID: 20170728084721 Steps to reproduce: I’m using a drag-n-drop script that is doing nothing when using Nightly (56.0a1) in a e10s window. It does work fine using a "non-e10s window" and in Firefox 54 Stable. This non-behaviour can be experienced even on the examples given on the MDN page : https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/files Actual results: Nothing. The JS object "event.dataTransfer" is "null" (according to the web develleper tools in Firefox). Expected results: The "event.dataTransfer" should not be "null" and the "event.dataTransfer.files" should contain the list of files. Everything works fine in Firefox 54 Stable or in Nightly inside a non-e10s-window.
Component: Untriaged → Drag and Drop
Product: Firefox → Core
I don't see this issue on Linux. Can you provide a testcase showing the issue?
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