Bundle Transformer: LESS

BundleTransformer.Less contains translator-adapterLessTranslator (supports LESS version 2.5.0). This adapter makes translation of LESS-code to CSS-code. Also contains HTTP-handlerLessAssetHandler, which is responsible for text output of translated LESS-asset.

BundleTransformer.Less does not support: the string interpolation in file paths and loading of plugins.

As a JS-engine is used the JavaScript Engine Switcher library. For correct working of this module is recommended to install one of the following NuGet packages: JavaScriptEngineSwitcher.Msie or JavaScriptEngineSwitcher.V8. After package is installed, need set a name of JavaScript engine (for example,MsieJsEngine) to the name attribute of /configuration/bundleTransformer/less/jsEngine configuration element.

To use a debugging HTTP-handler in the IIS Classic mode, you need add to the /configuration/system.web/httpHandlers element of the Web.config file a following code:

<addpath="*.less"verb="GET"type="BundleTransformer.Less.HttpHandlers.LessAssetHandler, BundleTransformer.Less"/>

1. In BundleTransformer.CoffeeScript updated CoffeeScript to commit bd17cc9b3c;
2. In BundleTransformer.UglifyJs added support of UglifyJS version 2.4.19;
3. In BundleTransformer.CleanCss added support of Clean-css version 3.1.9.

NuGet Packages

• Bundle Transformer: CoffeeScript contains adapter for theCoffeeScript version 1.9.1

• Bundle Transformer: UglifyJS contains adapter for theMihai Bazon's UglifyJS version 2.4.19
• Bundle Transformer: Clean-css contains adapter for theClean-css version 3.1.9

1. In BundleTransformer.CoffeeScript updated CoffeeScript to commit bd17cc9b3c;
2. In BundleTransformer.UglifyJs added support of UglifyJS version 2.4.19;
3. In BundleTransformer.CleanCss added support of Clean-css version 3.1.9.

NuGet Packages

• Bundle Transformer: CoffeeScript contains adapter for the CoffeeScript version 1.9.1

• Bundle Transformer: UglifyJS contains adapter for the Mihai Bazon's UglifyJS version 2.4.19
• Bundle Transformer: Clean-css contains adapter for the Clean-css version 3.1.9

Bundle Transformer: UglifyJS

BundleTransformer.UglifyJs contains one minifier-adapter for minification of JS-code -UglifyJsMinifier. UglifyJsMinifier is based on the Mihai Bazon's UglifyJS version 2.4.19.

As a JS-engine is used the JavaScript Engine Switcher library. For correct working of this module is recommended to install one of the following NuGet packages: JavaScriptEngineSwitcher.Msie or JavaScriptEngineSwitcher.V8. After package is installed, need set a name of JavaScript engine (for example,MsieJsEngine) to the name attribute of /configuration/bundleTransformer/uglify/jsEngine configuration element.

To make UglifyJsMinifier is the default JS-minifier, you need to make changes to theWeb.config file. In the defaultMinifier attribute of the \configuration\bundleTransformer\core\js element must be set value equal toUglifyJsMinifier.

Bundle Transformer: Clean-css

BundleTransformer.CleanCss contains one minifier-adapter for minification of CSS-code -CleanCssMinifier. CleanCssMinifier is based on the Clean-css version 3.1.9.

As a JS-engine is used the JavaScript Engine Switcher library. For correct working of this module is recommended to install the following NuGet packages:JavaScriptEngineSwitcher.V8 or JavaScriptEngineSwitcher.Msie (only in the ChakraJsRt mode). After package is installed, need set a name of JavaScript engine (for example,V8JsEngine) to the name attribute of /configuration/bundleTransformer/clean/jsEngine configuration element.

To make CleanCssMinifier is the default CSS-minifier, you need to make changes to theWeb.config file. In the defaultMinifier attribute of the \configuration\bundleTransformer\core\css element must be set value equal toCleanCssMinifier.

Additional reading and resources

Microsoft ASP.NET Web Optimization Framework

• «.NET Bundling & Minification – 10 Key Notes» by Travis J. Gosselin
• «Extending the ASP.NET Optimization Framework» by Andrew Jameson
• «Sorting a ScriptBundle based on /// <reference /> tags» by Shane S. Anderson
• «Bundling with SourceURL for Dynamically Loaded Scripts» by Travis J. Gosselin
• «Bundling Resource Files to JavaScript» by Travis J. Gosselin
• «ASP.NET Bundling/Minification and Embedded Resources» by Imran Baloch

Bundle Transformer

• «Setting up ASP.NET MVC 4 and Twitter Bootstrap 3 with LESS» by Jennifer Semtner
• «Bootstrap 3, LESS, Bundling, and ASP.NET MVC» by Tom DuPont
• «Compile TypeScript On Request with BundleTransformer» by Tom DuPont
• «Hack proof your Javascript using javascript Obfuscation in ASP.NET applications» by Sarvesh Kushwaha

Grunt/Gulp

• «Introducing Gulp, Grunt, Bower, and npm support for Visual Studio» by Scott Hanselman
• «Grunt and Gulp Intellisense in Visual Studio 2013» by Mads Kristensen
• «Modern Web Tooling in Visual Studio 2015» by Mads Kristensen

Grunt

• «Add Grunt and Bower to Visual Studio projects» by Mads Kristensen
• «Getting started with Grunt, SASS and Task Runner Explorer» by Colin Bacon
• «Manage Client-Side Web Development in Visual Studio 2015, Using Grunt and Bower» by Mike Wasson

Gulp

• «An introduction to Gulp» by Florian Rappl
• «How to use Gulp in Visual Studio» by Dave Paquette
• «Using Bower with Visual Studio 2013» by Dave Paquette
• «Ensuring Intellisense for Bower Packages in Visual Studio 2013» by Dave Paquette
• «Waiting for gulp tasks to finish in Visual Studio» by Dave Paquette
• «Integrating Gulp and Bower with Visual Studio Online Hosted Builds» by Dave Paquette

Project Description

Bundle Transformer - a modular extension for System.Web.Optimization (also known as the Microsoft ASP.NET Web Optimization Framework). ClassesStyleTransformer and ScriptTransformer, included in the core of Bundle Transformer and implement interfaceIBundleTransform. They are intended to replace the standard classesCssMinify and JsMinify.

The main differences of StyleTransformer andScriptTransformer classes from a standard implementations: ability to exclude unnecessary assets when adding assets from a directory, does not produce the re-minification of pre-minified assets, support automatic transformation of relative paths to absolute in CSS-code (by using UrlRewritingCssPostProcessor), etc. These classes do not produce the minification of code in runtime, but this feature can be added by installing of minifier-modules (now available modules based onMicrosoft Ajax Minifier,YUI Compressor for .NET,Google Closure Compiler,Douglas Crockford's JSMin,Dean Edwards' Packer,Mihai Bazon's UglifyJS,Sergey Kryzhanovsky's CSSO (CSS Optimizer),WebGrease and Clean-css). In addition, you can also install translator-modules that implement the translation of code on intermediate languages (LESS,Sass, SCSS, CoffeeScript, TypeScript, Mustache (by usingHogan) and Handlebars). Apart from this, in the Bundle Transformer there is a third type of modules - postprocessors. Postprocessors runs after translators and before minifiers. Now available following postprocessors: URL rewriting CSS-postprocessor (included in core) and postprocessor-module based on the Andrey Sitnik's Autoprefixer.

This extension will help your web applications successfully pass a most part of the tests inYSlow.

NuGet Packages

Core

• Bundle Transformer: Core
• Bundle Transformer: IntelliSense

Translators

• Bundle Transformer: LESS
• Bundle Transformer: Sass and SCSS
• Bundle Transformer: CoffeeScript
• Bundle Transformer: TypeScript
• Bundle Transformer: Hogan
• Bundle Transformer: Handlebars

Postprocessors

• Bundle Transformer: Autoprefixer

Minifiers

• Bundle Transformer: Microsoft Ajax
• Bundle Transformer: YUI
• Bundle Transformer: Closure
• Bundle Transformer: JSMin
• Bundle Transformer: Packer
• Bundle Transformer: UglifyJS
• Bundle Transformer: CSSO
• Bundle Transformer: WebGrease
• Bundle Transformer: Clean-css

Unofficial modules

• AngularBundle by Andreas Hjortland

Who's Using Bundle Transformer

If you use Bundle Transformer in some project, please send me a message so I can include it in this list:

Software

• Ans.Mvc4.Installer by Roman Koff
• ASP.NET MVC5 with Bootstrap 3.1.1 LESS by Krzysztof Osowicki
• Autoprefixer for .NET by Vegard Larsen
• bootlessmvc by Jarek Dubrownik
• Bundle Transformer LESS Theme Builders by Ben Embery
• Dynamic Bundles for ASP.NET MVC by Matt Perdeck
• EonicWeb5
• Equ Umbraco Bootstrap
• Exceptionless
• ModernSkins by Sam Salisbury
• Open Government Data Initiative v6
• Optimus by Tim Geyssens
• Sassy by Warren Buckley
• SmartStore.NET
• Vault MVC Library by Admir Tuzovic, Josip Dusper, Mirza Dervisevic and Fedja Omeragic

Websites

• Website of Latvia Dance Sport Federation (LSDF)
• MirGames.ru

Bundle Transformer was created and is maintained by Andrey Taritsyn.

NuGet Packages

• Bundle Transformer: Autoprefixer contains adapter for theAndrey Sitnik's Autoprefixer version 5.1.8.1

NuGet Packages

• Bundle Transformer: Autoprefixer contains adapter for the Andrey Sitnik's Autoprefixer version 5.1.8.1

Bundle Transformer: Autoprefixer

BundleTransformer.Autoprefixer contains one postprocessor-adapter for postprocessing of CSS-code -AutoprefixCssPostProcessor. AutoprefixCssPostProcessor is based on the Andrey Sitnik's Autoprefixer version 5.1.8.1.

As a JS-engine is used the JavaScript Engine Switcher library. For correct working of this module is recommended to install the following NuGet packages:JavaScriptEngineSwitcher.V8 or JavaScriptEngineSwitcher.Msie (only in the ChakraJsRt mode). After package is installed, need set a name of JavaScript engine (for example,V8JsEngine) to the name attribute of /configuration/bundleTransformer/autoprefixer/jsEngine configuration element.

To make AutoprefixCssPostProcessor is one of the default CSS-postprocessors, you need to make changes to the Web.config file. In thedefaultPostProcessors attribute of \configuration\bundleTransformer\core\css element must be add AutoprefixCssPostProcessor to end of comma-separated list (for example, defaultPostProcessors="UrlRewritingCssPostProcessor,AutoprefixCssPostProcessor").

Additionally, you can specify the browser conditional expressions in the Web.config file (in the Visual Studio supported IntelliSense):

To clean CSS from any vendor prefixes, you just need to add the one conditional expression is equal tonone:

<configuration>…
  <bundleTransformerxmlns="http://tempuri.org/BundleTransformer.Configuration.xsd">…
    <autoprefixer><browsers><addconditionalExpression="none"/></browsers>…
    </autoprefixer>…
  </bundleTransformer>…
</configuration>

1. In BundleTransformer.ConfigurationIntelliSense in Clean CSS-minifier settings added new definition for the `compatibility` property;
2. In BundleTransformer.CleanCss in configuration settings of CSS-minifier was changed type of `Compatibility` property from enumeration to string (default `*`). This change also gives fine grained control over the compatibility settings (for example, you can specify `ie8,+units.rem`).

NuGet Packages

• Bundle Transformer: IntelliSense

• Bundle Transformer: Clean-css contains adapter for theClean-css version 3.1.9

1. In BundleTransformer.ConfigurationIntelliSense in Clean CSS-minifier settings added new definition for the `compatibility` property;
2. In BundleTransformer.CleanCss in configuration settings of CSS-minifier was changed type of `Compatibility` property from enumeration to string (default `*`). This change also gives fine grained control over the compatibility settings (for example, you can specify `ie8,+units.rem`).

NuGet Packages

• Bundle Transformer: IntelliSense

• Bundle Transformer: Clean-css contains adapter for the Clean-css version 3.1.9

Configuration settings

Starting with version 1.2.1 Beta from the Web.config file has been removed settings of Bundle Transformer, which were default settings. Current settings of Bundle Transformer equivalent to following version of theWeb.config file:

<?xmlversion="1.0"encoding="utf-8"?><configuration><configSections><!-- Declaration of Bundle Transformer configuration section group --><sectionGroupname="bundleTransformer"><sectionname="core"type="BundleTransformer.Core.Configuration.CoreSettings, BundleTransformer.Core"/><sectionname="less"type="BundleTransformer.Less.Configuration.LessSettings, BundleTransformer.Less"/><sectionname="sassAndScss"type="BundleTransformer.SassAndScss.Configuration.SassAndScssSettings, BundleTransformer.SassAndScss"/><sectionname="coffeeScript"type="BundleTransformer.CoffeeScript.Configuration.CoffeeScriptSettings, BundleTransformer.CoffeeScript"/><sectionname="typeScript"type="BundleTransformer.TypeScript.Configuration.TypeScriptSettings, BundleTransformer.TypeScript"/><sectionname="hogan"type="BundleTransformer.Hogan.Configuration.HoganSettings, BundleTransformer.Hogan"/><sectionname="handlebars"type="BundleTransformer.Handlebars.Configuration.HandlebarsSettings, BundleTransformer.Handlebars"/><sectionname="autoprefixer"type="BundleTransformer.Autoprefixer.Configuration.AutoprefixerSettings, BundleTransformer.Autoprefixer"/><sectionname="microsoftAjax"type="BundleTransformer.MicrosoftAjax.Configuration.MicrosoftAjaxSettings, BundleTransformer.MicrosoftAjax"/><sectionname="yui"type="BundleTransformer.Yui.Configuration.YuiSettings, BundleTransformer.Yui"/><sectionname="closure"type="BundleTransformer.Closure.Configuration.ClosureSettings, BundleTransformer.Closure"/><sectionname="uglify"type="BundleTransformer.UglifyJs.Configuration.UglifySettings, BundleTransformer.UglifyJs"/><sectionname="packer"type="BundleTransformer.Packer.Configuration.PackerSettings, BundleTransformer.Packer"/><sectionname="csso"type="BundleTransformer.Csso.Configuration.CssoSettings, BundleTransformer.Csso"/><sectionname="webGrease"type="BundleTransformer.WG.Configuration.WgSettings, BundleTransformer.WG"/><sectionname="clean"type="BundleTransformer.CleanCss.Configuration.CleanSettings, BundleTransformer.CleanCss"/></sectionGroup><!-- /Declaration of Bundle Transformer configuration section group --><sectionGroupname="jsEngineSwitcher"><sectionname="core"type="JavaScriptEngineSwitcher.Core.Configuration.CoreConfiguration, JavaScriptEngineSwitcher.Core"/><sectionname="msie"type="JavaScriptEngineSwitcher.Msie.Configuration.MsieConfiguration, JavaScriptEngineSwitcher.Msie"/><sectionname="v8"type="JavaScriptEngineSwitcher.V8.Configuration.V8Configuration, JavaScriptEngineSwitcher.V8"/></sectionGroup></configSections>…
  <!-- Bundle Transformer configuration settings --><bundleTransformerxmlns="http://tempuri.org/BundleTransformer.Configuration.xsd"><coreenableTracing="false"jsFilesWithMicrosoftStyleExtensions="MicrosoftAjax.js,MicrosoftMvcAjax.js, MicrosoftMvcValidation.js,knockout-$version$.js"><cssdefaultPostProcessors="UrlRewritingCssPostProcessor"defaultMinifier="NullMinifier"usePreMinifiedFiles="true"combineFilesBeforeMinification="false"><translators><addname="NullTranslator"type="BundleTransformer.Core.Translators.NullTranslator, BundleTransformer.Core"enabled="false"/><addname="LessTranslator"type="BundleTransformer.Less.Translators.LessTranslator, BundleTransformer.Less"enabled="true"/><addname="SassAndScssTranslator"type="BundleTransformer.SassAndScss.Translators.SassAndScssTranslator, BundleTransformer.SassAndScss"enabled="true"/></translators><postProcessors><addname="UrlRewritingCssPostProcessor"type="BundleTransformer.Core.PostProcessors.UrlRewritingCssPostProcessor, BundleTransformer.Core"useInDebugMode="false"/><addname="AutoprefixCssPostProcessor"type="BundleTransformer.Autoprefixer.PostProcessors.AutoprefixCssPostProcessor, BundleTransformer.Autoprefixer"useInDebugMode="true"/></postProcessors><minifiers><addname="NullMinifier"type="BundleTransformer.Core.Minifiers.NullMinifier, BundleTransformer.Core"/><addname="MicrosoftAjaxCssMinifier"type="BundleTransformer.MicrosoftAjax.Minifiers.MicrosoftAjaxCssMinifier, BundleTransformer.MicrosoftAjax"/><addname="YuiCssMinifier"type="BundleTransformer.Yui.Minifiers.YuiCssMinifier, BundleTransformer.Yui"/><addname="KryzhanovskyCssMinifier"type="BundleTransformer.Csso.Minifiers.KryzhanovskyCssMinifier, BundleTransformer.Csso"/><addname="WgCssMinifier"type="BundleTransformer.WG.Minifiers.WgCssMinifier, BundleTransformer.WG"/><addname="CleanCssMinifier"type="BundleTransformer.CleanCss.Minifiers.CleanCssMinifier, BundleTransformer.CleanCss"/></minifiers><fileExtensions><addfileExtension=".css"assetTypeCode="Css"/><addfileExtension=".less"assetTypeCode="Less"/><addfileExtension=".sass"assetTypeCode="Sass"/><addfileExtension=".scss"assetTypeCode="Scss"/></fileExtensions></css><jsdefaultPostProcessors=""defaultMinifier="NullMinifier"usePreMinifiedFiles="true"combineFilesBeforeMinification="false"><translators><addname="NullTranslator"type="BundleTransformer.Core.Translators.NullTranslator, BundleTransformer.Core"enabled="false"/><addname="CoffeeScriptTranslator"type="BundleTransformer.CoffeeScript.Translators.CoffeeScriptTranslator, BundleTransformer.CoffeeScript"enabled="true"/><addname="TypeScriptTranslator"type="BundleTransformer.TypeScript.Translators.TypeScriptTranslator, BundleTransformer.TypeScript"enabled="true"/><addname="HoganTranslator"type="BundleTransformer.Hogan.Translators.HoganTranslator, BundleTransformer.Hogan"enabled="true"/><addname="HandlebarsTranslator"type="BundleTransformer.Handlebars.Translators.HandlebarsTranslator, BundleTransformer.Handlebars"enabled="true"/></translators><minifiers><addname="NullMinifier"type="BundleTransformer.Core.Minifiers.NullMinifier, BundleTransformer.Core"/><addname="MicrosoftAjaxJsMinifier"type="BundleTransformer.MicrosoftAjax.Minifiers.MicrosoftAjaxJsMinifier, BundleTransformer.MicrosoftAjax"/><addname="YuiJsMinifier"type="BundleTransformer.Yui.Minifiers.YuiJsMinifier, BundleTransformer.Yui"/><addname="ClosureRemoteJsMinifier"type="BundleTransformer.Closure.Minifiers.ClosureRemoteJsMinifier, BundleTransformer.Closure"/><addname="ClosureLocalJsMinifier"type="BundleTransformer.Closure.Minifiers.ClosureLocalJsMinifier, BundleTransformer.Closure"/><addname="CrockfordJsMinifier"type="BundleTransformer.JsMin.Minifiers.CrockfordJsMinifier, BundleTransformer.JsMin"/><addname="EdwardsJsMinifier"type="BundleTransformer.Packer.Minifiers.EdwardsJsMinifier, BundleTransformer.Packer"/><addname="UglifyJsMinifier"type="BundleTransformer.UglifyJs.Minifiers.UglifyJsMinifier, BundleTransformer.UglifyJs"/></minifiers><fileExtensions><addfileExtension=".js"assetTypeCode="JavaScript"/><addfileExtension=".coffee"assetTypeCode="CoffeeScript"/><addfileExtension=".litcoffee"assetTypeCode="LiterateCoffeeScript"/><addfileExtension=".coffee.md"assetTypeCode="LiterateCoffeeScript"/><addfileExtension=".ts"assetTypeCode="TypeScript"/><addfileExtension=".mustache"assetTypeCode="Mustache"/><addfileExtension=".handlebars"assetTypeCode="Handlebars"/><addfileExtension=".hbs"assetTypeCode="Handlebars"/></fileExtensions></js><assetHandlerdisableServerCache="false"serverCacheDurationInMinutes="15"disableClientCache="false"/></core><lessuseNativeMinification="false"ieCompat="true"strictMath="false"strictUnits="false"dumpLineNumbers="None"javascriptEnabled="true"globalVariables=""modifyVariables=""><jsEnginename=""/></less><sassAndScssuseNativeMinification="false"lineNumbers="false"traceSelectors="false"debugInfo="false"/><coffeeScriptbare="true"><jsEnginename=""/></coffeeScript><typeScriptnoEmit="false"noEmitOnError="false"noImplicitAny="false"noLib="false"preserveConstEnums="false"removeComments="false"stripInternal="false"suppressImplicitAnyIndexErrors="false"target="EcmaScript3"><jsEnginename=""/></typeScript><hoganuseNativeMinification="false"variable="templates"namespace=""delimiters=""><jsEnginename=""/></hogan><handlebarsnamespace="Handlebars.templates"rootPath=""knownHelpers=""knownHelpersOnly="false"data="true"><jsEnginename=""/></handlebars><autoprefixercascade="true"safe="false"remove="true"><browsers><addconditionalExpression="> 1%" /><addconditionalExpression="last 2 versions"/><addconditionalExpression="Firefox ESR"/><addconditionalExpression="Opera 12.1"/></browsers><jsEnginename=""/></autoprefixer><microsoftAjax><cssallowEmbeddedAspNetBlocks="false"blocksStartOnSameLine="NewLine"ignoreAllErrors="false"ignoreErrorList=""indentSize="4"lineBreakThreshold="2147482647"outputMode="SingleLine"preprocessorDefineList=""termSemicolons="false"colorNames="Hex"commentMode="Important"minifyExpressions="true"removeEmptyBlocks="true"severity="0"/><jsallowEmbeddedAspNetBlocks="false"blocksStartOnSameLine="NewLine"ignoreAllErrors="false"ignoreErrorList=""indentSize="4"lineBreakThreshold="2147482647"outputMode="SingleLine"preprocessorDefineList=""termSemicolons="false"alwaysEscapeNonAscii="false"amdSupport="false"collapseToLiteral="true"constStatementsMozilla="false"debugLookupList="Debug,$Debug,WAssert,Msn.Debug,Web.Debug"errorIfNotInlineSafe="false"evalLiteralExpressions="true"evalTreatment="Ignore"ignoreConditionalCompilation="false"ignorePreprocessorDefines="false"inlineSafeStrings="true"knownGlobalNamesList=""localRenaming="CrunchAll"macSafariQuirks="true"manualRenamesProperties="true"noAutoRenameList="$super"preserveFunctionNames="false"preserveImportantComments="true"quoteObjectLiteralProperties="false"removeFunctionExpressionNames="true"removeUnneededCode="true"renamePairs=""reorderScopeDeclarations="true"strictMode="false"stripDebugStatements="true"severity="0"/></microsoftAjax><yui><csscompressionType="Standard"removeComments="true"lineBreakPosition="-1"/><jscompressionType="Standard"obfuscateJavascript="true"preserveAllSemicolons="false"disableOptimizations="false"ignoreEval="false"severity="0"lineBreakPosition="-1"encoding="UTF8"threadCulture="en-us"/></yui><closure><js><remotecharset=""closureCompilerServiceApiUrl="http://closure-compiler.appspot.com/compile"compilationLevel="Simple"excludeDefaultExterns="false"language="EcmaScript3"prettyPrint="false"useTypesForOptimization="false"severity="0"/><localacceptConstKeyword="false"allowEs6Output="false"angularPass="false"charset=""closureCompilerApplicationPath=""compilationLevel="Simple"definitionList=""errorList=""exportLocalPropertyDefinitions="false"extraAnnotationNameList=""generateExports="false"javaVirtualMachinePath=""languageInput="EcmaScript3"languageOutput="None"prettyPrint="false"processClosurePrimitives="false"processJqueryPrimitives="false"singleQuotes="false"thirdParty="true"transpileOnly="false"turnOffWarningClassList=""useOnlyCustomExterns="false"useTypesForOptimization="false"warningList=""severity="0"/></js></closure><packer><jsshrinkVariables="true"base62Encode="false"/><jsEnginename=""/></packer><uglify><jsscrewIe8="false"keepFunctionNames="false"severity="0"><parsingstrict="false"bareReturns="false"/><compressioncompress="true"sequences="true"propertiesDotNotation="true"deadCode="true"dropDebugger="true"unsafe="false"conditionals="true"comparisons="true"evaluate="true"booleans="true"loops="true"unused="true"hoistFunctions="true"keepFunctionArgs="false"hoistVars="false"ifReturn="true"joinVars="true"cascade="true"globalDefinitions=""pureGetters="false"pureFunctions=""dropConsole="false"angular="false"/><manglingmangle="true"except=""eval="false"sort="false"topLevel="false"/><codeGenerationbeautify="false"indentLevel="4"indentStart="0"quoteKeys="false"spaceColon="true"asciiOnly="false"inlineScript="false"width="80"maxLineLength="32000"bracketize="false"semicolons="true"comments=""preserveLine="false"unescapeRegexps="false"quoteStyle="Auto"/></js><jsEnginename=""/></uglify><csso><cssdisableRestructuring="false"/><jsEnginename=""/></csso><webGrease><cssshouldMinify="true"ejectCharset="true"/></webGrease><clean><cssadvanced="true"aggressiveMerging="true"compatibility="*"keepBreaks="false"keepSpecialComments="KeepAll"mediaMerging="true"restructuring="true"roundingPrecision="2"shorthandCompacting="true"severity="0"/><jsEnginename=""/></clean></bundleTransformer><!-- /Bundle Transformer configuration settings --><jsEngineSwitcherxmlns="http://tempuri.org/JavaScriptEngineSwitcher.Configuration.xsd"><core><engines><addname="MsieJsEngine"type="JavaScriptEngineSwitcher.Msie.MsieJsEngine, JavaScriptEngineSwitcher.Msie"/><addname="V8JsEngine"type="JavaScriptEngineSwitcher.V8.V8JsEngine, JavaScriptEngineSwitcher.V8"/></engines></core><msieengineMode="Auto"/></jsEngineSwitcher>…
  <system.webServer>…
    <handlers>…
      <!-- Declaration of Bundle Transformer HTTP-handlers --><addname="LessAssetHandler"path="*.less"verb="GET"type="BundleTransformer.Less.HttpHandlers.LessAssetHandler, BundleTransformer.Less"resourceType="File"preCondition=""/><addname="SassAssetHandler"path="*.sass"verb="GET"type="BundleTransformer.SassAndScss.HttpHandlers.SassAndScssAssetHandler, BundleTransformer.SassAndScss"resourceType="File"preCondition=""/><addname="ScssAssetHandler"path="*.scss"verb="GET"type="BundleTransformer.SassAndScss.HttpHandlers.SassAndScssAssetHandler, BundleTransformer.SassAndScss"resourceType="File"preCondition=""/><addname="CoffeeScriptAssetHandler"path="*.coffee"verb="GET"type="BundleTransformer.CoffeeScript.HttpHandlers.CoffeeScriptAssetHandler, BundleTransformer.CoffeeScript"resourceType="File"preCondition=""/><addname="LiterateCoffeeScriptAssetHandler"path="*.litcoffee"verb="GET"type="BundleTransformer.CoffeeScript.HttpHandlers.CoffeeScriptAssetHandler, BundleTransformer.CoffeeScript"resourceType="File"preCondition=""/><addname="CoffeeScriptMarkdownAssetHandler"path="*.coffee.md"verb="GET"type="BundleTransformer.CoffeeScript.HttpHandlers.CoffeeScriptAssetHandler, BundleTransformer.CoffeeScript"resourceType="File"preCondition=""/><addname="TypeScriptAssetHandler"path="*.ts"verb="GET"type="BundleTransformer.TypeScript.HttpHandlers.TypeScriptAssetHandler, BundleTransformer.TypeScript"resourceType="File"preCondition=""/><addname="MustacheAssetHandler"path="*.mustache"verb="GET"type="BundleTransformer.Hogan.HttpHandlers.HoganAssetHandler, BundleTransformer.Hogan"resourceType="File"preCondition=""/><addname="HandlebarsAssetHandler"path="*.handlebars"verb="GET"type="BundleTransformer.Handlebars.HttpHandlers.HandlebarsAssetHandler, BundleTransformer.Handlebars"resourceType="File"preCondition=""/><addname="HbsAssetHandler"path="*.hbs"verb="GET"type="BundleTransformer.Handlebars.HttpHandlers.HandlebarsAssetHandler, BundleTransformer.Handlebars"resourceType="File"preCondition=""/><!-- /Declaration of Bundle Transformer HTTP-handlers -->…
    </handlers><security><requestFiltering><hiddenSegments><addsegment="ClearScript.V8"/></hiddenSegments></requestFiltering></security></system.webServer></configuration>

If you install the BundleTransformer.ConfigurationIntelliSense package, then while editing a Web.config file will be supported IntelliSense for the bundleTransformer configuration section (implemented by using XML Schema, which is located in theBundleTransformer.Configuration.xsd file):