Value after the question mark in IcoMoon css?

[Aleks Pausak]

The value in the CSS after the font name for IconMoon "ie. -tn3nsz9" what does this value represent?

I had a problem where my icons stopped showing but after I changed this value they started to work again, any info that you guys can provide would be greatly appreciated.

<pre>

@font-face {

    font-family: 'icomoon';

src: url('../fonts/icomoon.eot?-tn3nsz9');

src: url('../fonts/icomoon.eot?#iefix-tn3nsz9') format('embedded-opentype'),  url('../fonts/icomoon.woff?-tn3nsz9') format('woff'),  url('../fonts/icomoon.ttf?-tn3nsz9') format('truetype'),  url('../fonts/icomoon.svg?-tn3nsz9#icomoon') format('svg');

font-weight: normal;

font-style: normal;

}

</pre>

[Keyamoon]

Please see this: https://icomoon.io/#faq/cache-busters

[Foster Bell]

Thanks for the link it's appreciated.