Disclaimer

This will work for stores on Miva Version 9.0 or newer. Note that this will require making changes to files on the server. Make sure you make a backup of any files you will be altering.These edits are low-risk but if you feel uncomfortable with making these changes then we advise you to seek help from a developer. 

If you have the Suivant theme and your Global Header and Footer Icons are being displayed as letters.

Here are a few changes that can be made to correct the issue.

Instructions

Add the following snippet to the htaccess file on your server.

<IfModule mod_headers.c>
Header add Access-Control-Allow-Origin "*"
</IfModule>

If this does not work edit the following in your fonts.css file...

Original wrong way:
/* ------------------------ Custom Suivant Icon Font ------------------------ */
@font-face {
font-family: 'Suivant';
src: url('../fonts/Suivant.eot?-d1oe69');
src: url('../fonts/Suivant.eot?#iefix-d1oe69') format('embedded-opentype'),
url('../fonts/Suivant.woff?-d1oe69') format('woff'),
url('../fonts/Suivant.ttf?-d1oe69') format('truetype'),
url('../fonts/Suivant.svg?-d1oe69#Suivant') format('svg');
font-weight: normal;
font-style: normal;
}

Updated code CORRECT WAY:
/* ------------------------ Custom Suivant Icon Font ------------------------ */
@font-face {
font-family: 'Suivant';
src: url('../fonts/Suivant.eot');
src: url('../fonts/Suivant.eot?#iefix-d1oe69') format('embedded-opentype'),
url('../fonts/Suivant.woff') format('woff'),
url('../fonts/Suivant.ttf') format('truetype'),
url('../fonts/Suivant.svg') format('svg');
font-weight: normal;
font-style: normal;
}

https://staffkb.mivamerchant.net/entry/70/