Last modified: 2014-09-26 23:26:46 UTC
Created attachment 16598 [details] screenshot of Chrome 37 inspector showing shadow DOM elements One is supposed to see a pointing hand ("pointer") cursor when the mouse hovers over the "select a file" / "add more files" button. However, with the current version of Chrome (37) on Mac OS X, and possibly other platforms, the hover cursor doesn't work over the entire surface of the button. Something is blocking it. Using the Inspector on the button reveals some shadow DOM inside it. This doesn't seem to happen on current Safari or Firefox builds. However, it might become an issue as more browsers implement shadow DOM. How in the world we are triggering Chrome's shadow DOM is a mystery though. This might just be a Chrome bug.
I'm not sure I understand the bug report. Input elements tend to have shadow DOM; you see it because you have enabled it in the settings panel of the web developer toolbar (under elements / show user agent shadow dom). The cursor is affected by some sort of layout issue - if you change the position of the parent div to static, it will work. I doubt that has anything to do with shadow DOM.