IE8 @font-face is not working when define not only eot

Question

In this case everything works well and font displayed right:

@font-face {
    font-family: 'CalibriRegular';
    src: url('fonts/calibri.eot');
}

But when I add other formats, font is not displayed in IE8:

@font-face {
    font-family: 'CalibriRegular';
    src: url('fonts/calibri.eot');
    src: url('fonts/calibri.eot') format('embedded-opentype'),
         url('fonts/calibri.woff') format('woff'),
         url('fonts/calibri.ttf') format('truetype'),
         url('fonts/calibri.svg#CalibriRegular') format('svg');
}

What's the problem? Thanks

Answer 1

You need a hash, usually ?#iefix for convention, on the eot that appears in the multiple src list. This explains why: How does ?#iefix solve web fonts loading in IE6-IE8?

@font-face {
    font-family: 'CalibriRegular';
    src: url('fonts/calibri.eot');
    src: url('fonts/calibri.eot?#iefix') format('embedded-opentype'),
         url('fonts/calibri.woff') format('woff'),
         url('fonts/calibri.ttf') format('truetype'),
         url('fonts/calibri.svg#CalibriRegular') format('svg');
}