Expected Behavior

• Google fallback should use https.
• Non-ASCII domains need to be %-encoded when constructing the google fallback url because they are url query string parameters. For example, http://💩.la. QUrlQuery::addQueryItem(?
• Internationalized domain names are converted to Punycode by browsers before making requests to the domain. I believe QUrl does this but am not sure. Tests needed?

Current Behavior

• Google fallback is an http endpoint
• Non-ASCII domains fail to fetch favicons from google fallback

Possible Solution

Steps to Reproduce (for bugs)

1. Create a new entry with http://💩.la as the URL
2. Click on the "Icon" icon
3. Click download favicon
4. Observe error popup

Context

Debug Info

KeePassXC - Version 2.2.0
Revision: caa49a8

Libraries:

• Qt 5.9.0
• libgcrypt 1.7.7

Operating system: macOS Sierra (10.12)
CPU architecture: x86_64
Kernel: darwin 16.6.0

Enabled extensions:

• KeePassHTTP
• Auto-Type
• YubiKey