Twitter bootstrap glyphicons do not appear in release mode 404

Here's how I solved it -- I'm using MVC5 and Bootstrap 3.1.1.

I have my files organized in the project like this:

/Content/Bootstrap/bootstrap.css                   bootstrap.min.css/Content/fonts/glyphicons-halflings-regular.eot               glyphicons-halflings-regular.svg               glyphicons-halflings-regular.ttf               glyphicons-halflings-regular.woff

Then I added another level to my virtual path in the bundle config

bundles.Add(new StyleBundle("~/Content/site/css").Include(    "~/Content/bootstrap/bootstrap.css",    "~/Content/styles/site.css"));

Previously I had used ~/Content/css

And in the view...

@Styles.Render("~/Content/site/css")

This worked but I still got a 404 on one of the fonts... so I added Giles' solution.

<?xml version="1.0" encoding="UTF-8"?><system.webServer>    <staticContent>        <remove fileExtension=".eot" />        <remove fileExtension=".ttf" />        <remove fileExtension=".otf"/>        <remove fileExtension=".woff"/>        <mimeMap fileExtension=".eot" mimeType="application/vnd.ms-fontobject" />        <mimeMap fileExtension=".ttf" mimeType="font/ttf" />        <mimeMap fileExtension=".otf" mimeType="font/otf" />        <mimeMap fileExtension=".woff" mimeType="application/font-woff" />        <mimeMap fileExtension=".woff2" mimeType="application/font-woff2" />    </staticContent></system.webServer>

Copying the font folder to the root of the web app and changing the mime types in web.config to

<?xml version="1.0" encoding="UTF-8"?><system.webServer>  <staticContent>    <remove fileExtension=".eot" />    <remove fileExtension=".ttf" />    <remove fileExtension=".otf"/>    <remove fileExtension=".woff"/>    <mimeMap fileExtension=".eot" mimeType="application/vnd.ms-fontobject" />    <mimeMap fileExtension=".ttf" mimeType="font/ttf" />    <mimeMap fileExtension=".otf" mimeType="font/otf" />    <mimeMap fileExtension=".woff" mimeType="application/font-woff" />  </staticContent></system.webServer>

fixed the issue for me. Please note that the .woff mimeType is different to the one in the question.

I had the same problem, using IIS 7.5 webserver.

The solution was to add .woff to the list of file name extensions with MIME type application/octet-stream on the webserver.

You could also achieve the same in web.config:

<staticContent>    <remove fileExtension=".woff" />    <mimeMap fileExtension=".woff" mimeType="application/octet-stream" /></staticContent>