Abbot is not handling correctly the css definition of web fonts

[mirion]

In order to be usable by as many as possible browsers, web fonts are often defined using constructs like below. Unfortunately abbot doesn't like 'webfonts/wf.eot?#iefix' because it uses the given path as it is, not ignoring everything beginning with "?". Is searching a file named "wf.eot?#iefix"

@font-face {
  font-family: "wf";
  src: static_url('webfonts/wf.eot');
  src: static_url('webfonts/wf.eot?#iefix') format('embedded-opentype'),
       static_url('webfonts/wf.woff') format('woff'),
       static_url('webfonts/wf.ttf')  format('truetype'),
       static_url('webfonts/wf.svg#SSStandard') format('svg');
  font-weight: normal;
  font-style: normal;
}