Hei there, I had the same problem. I just used the predefined Glyphicons instead of the footable ones and it worked.
In the footable.core.css modify like this:
@font-face {
font-family: 'Glyphicons Halflings';
src: url('~/fonts/glyphicons-halflings-regular.eot');
src: url('~/fonts/glyphicons-halflings-regular.eot?#iefix') format('embedded-opentype'),
url('~/fonts/glyphicons-halflings-regular.woff') format('woff'),
url('~/fonts/glyphicons-halflings-regular.ttf') format('truetype'),
url('~/fonts/glyphicons-halflings-regular.svg#glyphicons-halflingsregular') format('svg'); font-weight: normal;
font-style: normal;
}
@media screen and (-webkit-min-device-pixel-ratio: 0) {
@font-face {
font-family: 'Glyphicons Halflings';
src: url('~/fonts/glyphicons-halflings-regular.svg#footable') format('svg');
font-weight: normal;
font-style: normal;
}
}
.footable.breakpoint > tbody > tr > td > span.footable-toggle {
display: inline-block;
font-family: 'Glyphicons Halflings';
speak: none;
font-style: normal;
font-weight: normal;
font-variant: normal;
text-transform: none;
-webkit-font-smoothing: antialiased;
padding-right: 10px;
text-align:center;
font-size: 14px;
color: #888888;
}
.footable > thead > tr > th > span.footable-sort-indicator {
display: inline-block;
font-family: 'Glyphicons Halflings';
speak: none;
font-style: normal;
font-weight: normal;
font-variant: normal;
text-transform: none;
-webkit-font-smoothing: antialiased;
padding-left: 5px;
}
And voila! It should work. In the code above i just show the snippets that had been modified. For the glyphicons just search "bootstrap glyphicons hex" and will find the codes for any icon you wanna use.