On Windows 10, using IE 11 specifically, icons are missing from the navigation bar (see attached screenshot). All other browsers and Operating Systems will not exhibit this behavior.

Environment

• Windows 10
• Internet Explorer 11

Steps to reproduce

1. Login to Jira;
2. Along the navigation bar, you will notice the icons are missing;

Expected Results

Icons appear in the navigation bar

Actual Results

Icons are missing (please see screenshot)

Cause

Windows 10 has a default security feature that blocks certain fonts: https://support.microsoft.com/en-us/kb/3053676

Workaround

Disable this feature:

Using Group Policy

1. Open the Local Group Policy Editor;
2. Under Local Computer Policy, expand Computer Configuration, then Administrative Templates > System > Mitigation Options;
3. In the Untrusted Font Blocking setting, you can see the following options:
   • Block untrusted fonts and log events
   • Do not block untrusted fonts
   • Log events without blocking untrusted fonts
4. Select either of the two last options;
5. Restart your computer;

Using Registry Editor

1. Open the Registry Editor (regedit.exe) and go to the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Kernel
2. If the MitigationOptions key is not there, right-click and add a new QWORD (64-bit) Value, naming it as MitigationOptions;
3. Update the Value data of the MitigationOptions key, again choosing one of the two last options for Jira's icons to work properly:
   • Block untrusted fonts and log events: 1000000000000.
   • Do not block untrusted fonts: 2000000000000.
   • Log events without blocking untrusted fonts: 3000000000000.
     Important: The existing MitigationOptions value should be preserved. For example, if the current value is 1000, the updated value should be 1000000001000.
4. Restart your computer;