MVC4 Bundle minification doesn't work with javascript reserved words

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有刺的猬 2020-12-31 06:55

Using the latest version of MVC4 I can\'t minify javascript when it contains reserved words as key names!

See the error below with the valid javascript that should h

2条回答

心在旅途 (楼主)

2020-12-31 07:26

Hope it's not too late. You can implement own minification transform and ignore these errors.

var bundle = new ScriptBundle("~/bundles/xxxbundle", null, new JsMinifyIgnoreReservedWordError()).
    Include("~/Scripts/xxx.js");

private class JsMinifyIgnoreReservedWordError : IBundleTransform
{
    private const string JsContentType = "text/javascript";

    public void Process(BundleContext context, BundleResponse response)
    {
        if (context == null)
        {
            throw new ArgumentNullException("context");
        }
        if (response == null)
        {
            throw new ArgumentNullException("response");
        }
        if (!context.EnableInstrumentation)
        {
            Minifier minifier = new Minifier();

            string result = minifier.MinifyJavaScript(response.Content, new CodeSettings
            {
                EvalTreatment = EvalTreatment.MakeImmediateSafe,
                PreserveImportantComments = false,
                        IgnoreErrorList = "JS1137" // ignore 'is a new reserved word and should not be used as an identifier' error
                    });

            if (minifier.ErrorList.Count > 0)
            {
                GenerateErrorResponse(response, minifier.ErrorList);
            }
            else
            {
                response.Content = result;
            }
        }
        response.ContentType = JsContentType;
    }

    private static void GenerateErrorResponse(BundleResponse bundle, IEnumerable