Upload file from FTP-site -> Chrome crash

I have a created a FTP network location (mapped) in windows and try to use Vaadin Upload feature to upload a file from the FTP-site to the Web application but I get the “Aww snap, something went wrong in Chrome”.

Is it a Vaadin problem or is a Chrome problem? My guess it is a Chrome problem as in IE10 this scenario is working (IE seems to copy the file into TEMP-folder before it is uploaded.

This scenario can be reproduced in the sampler also:
https://demo.vaadin.com/sampler/#ui/data-input/other/upload