QML video element and UNC paths

Is it possible to use UNC paths in QML video element (like //servername/folder/clip.mp4) ?
I try:

Code:

---

...
source: "//nas/films/some_clip.mp4"
...

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but got next error:

Code:

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DirectShowPlayerService::doSetUrlSource: Unresolved error code 80040216

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