electron: dialog.showOpenDialog does not work with network shares on macOS

• Electron version: 1.8.2
• Operating system: macOS 10.13.3

Expected behavior

I should be able to see folders inside a network share using dialog.showOpenDialog

Actual behavior

I can’t see folders inside a network share

How to reproduce

git clone -b cannot-see-network-folders https://github.com/greggman/electron-quick-start.git
cd electron-quick-start
npm install
npm start

An open dialog will appear.

• Navigate to a network share and try to find content inside. None will appear.
• Click cancel
• Click “Choose Files” (this is an <input type="file"> element
• Navigate to a network share and try to find content inside. It will work

Even stranger

• Click cancel
• Click “click to select files/folders”

It will start in the network share showing the contents. Re-navigate to the network share and the contents will not appear

Since using <input type="file"> WORKS IN ELECTRON so it looks like it’s just some flag missing? Maybe I’m just using it wrong although I didn’t see anything in the docs