Trying to download XLS from a popup doesn't work #250

Original report by Kaushik Chaubal (Bitbucket: kaushikchaubal, GitHub: kaushikchaubal).

I noticed that when you try to download an XLS file from a popup, nothing happens.

Steps to reproduce:

1. Run the following test (https://bitbucket.org/chromiumembedded/java-cef/src/915efe02304f19bff3e841a28ab892f9260d7218/java/tests/detailed/MainFrame.java)
2. Go to Tests >> Show DevTools >> Console
3. Run the following script (this is a sample xls available online) - a popup gets created but nothing happens:

#!javascript
window.open("http://coral.ie.lehigh.edu/~ted/files/eng5/misc/sample.xls",'name','height=200,width=150');

Note: With other formats, the popup seems to work. For example, run the following script (this is a sample pdf available online) - the pop gets created and renders the pdf successfully

#!javascript
window.open("http://www.cbu.edu.zm/downloads/pdf-sample.pdf",'name','height=200,width=150');

The details of the JCEF I am using is as follows:

• JCEF Version = 3.2526.150
• CEF Version = 3.2526.1366
• Chromium Version = 47.0.2526.80

Any ideas how to fix this?