ASP.NET 4.5 Bundling in Debug Mode - Stale Resources

Question

Is there any way we can make the ASP.NET 4.5 Bundling functionality generate GUID's as part of the querystring when running in debug mode (e.g bundling turned OFF).

The problem is when developing locally, the scripts/CSS files are generated like this:

<script type="text/javascript" src="/Content/Scripts/myscript.js" />

So if i change that file, i need to do a hard-refresh (sometimes a few times) to get the file to be picked up by the browser - annoying.

Is there any way we can make it render out like this:

<script type="text/javascript" src="/Content/Scripts/myscript.js?v=x" />

Where x is a GUID (e.g always unique).

Ideas?

I'm on ASP.NET MVC 4.

Answer 1

Until the NuGet package is patched as per the other answer above, for now i've ended up using the same wrapper code i did for the beta NuGet package:

private static IHtmlString JsUnbundled(this HtmlHelper htmlHelper, string bundlePath)
{
    var jsBuilder = new StringBuilder();
    foreach (var file in BundleResolver.Current.GetBundleContents(bundlePath))
    {
        var tagBuilder = new TagBuilder("script");
        tagBuilder.Attributes["src"] = file.AddCacheKey(); // add GUID
        tagBuilder.Attributes["type"] = "text/javascript";
        jsBuilder.AppendLine(tagBuilder.ToString());
    }
    return MvcHtmlString.Create(jsBuilder.ToString());
}

I then have another HTML helper which checks if debug, then uses the above - otherwises uses Scripts.Render.

Obviously this doesn't do any kind of hashing of the file - it will ALWAYS request the file. But i don't mind this, as it's only for debug.