To fix blank iSedora main window on Windows like this:

00_isedora_blank

Do the following steps:

  1. Open: "Control Panel" / "Network and Internet" and click "Internet Options":
    01_control_panel_network

  2. Select "Security" tab / "Trusted sites" and click "Sites" button:
    02_internet_properties_security_trusted_sites

  3. Add http://127.0.0.1 to the zone. Clear "Require server verification..." checkbox:
    03_trusted_sites_add