How to replace instant messanger plugin font file
https://www.domain.com/oc-content/plugins/instant_messenger/fonts/open-sans.woff
https://www.domain.com/oc-content/themes/veronika/fonts/open-sans.woff

@Miller
I am not quite sure if these are used anymore, in most themes and plugins cdn is used to get font awesome, check source code.

../fonts/open-sans.woff Removed one line instant messenger plugin css. any problem?

@font-face{font-family:'Open Sans';font-style:normal;font-weight:400;src:url(../fonts/open-sans.eot);src:local('Open Sans'),local('Open Sans'),url(../fonts/open-sans.eot) format('embedded-opentype'),url( REMOVED LINE HERE) format('woff')};

@Miller
It should not

work this

@font-face{font-family:'Open Sans';font-style:normal;font-weight:400;src:url(../fonts/open-sans.eot);src:local('Open Sans'),local('Open Sans'),url(../fonts/open-sans.eot) format('embedded-opentype'),url( https://www.domain.com/oc-content/themes/veronika/fonts/open-sans.woff ) format('woff')};