webpack构建打包中文件hash值不变但内容的确有变化问题分析及解决

'common': './node_modules/moment/moment.js',
'polyfills': `./client/${platform}/polyfills.browser.ts`,

 /**
         * Options affecting the output of the compilation.
         *
         * See: http://webpack.github.io/docs/configuration.html#output
         */
        output: {

            /**
             * The output directory as absolute path (required).
             *
             * See: http://webpack.github.io/docs/configuration.html#output-path
             */
            path: helpers.root('dist'),

            /**
             * Specifies the name of each output file on disk.
             * IMPORTANT: You must not specify an absolute path here!
             *
             * See: http://webpack.github.io/docs/configuration.html#output-filename
             */
            filename: '[name].[chunkhash].bundle.js',

            /**
             * The filename of the SourceMaps for the JavaScript files.
             * They are inside the output.path directory.
             *
             * See: http://webpack.github.io/docs/configuration.html#output-sourcemapfilename
             */
            sourceMapFilename: '[name].[chunkhash].bundle.map',

            /**
             * The filename of non-entry chunks as relative path
             * inside the output.path directory.
             *
             * See: http://webpack.github.io/docs/configuration.html#output-chunkfilename
             */
            chunkFilename: '[id].[chunkhash].chunk.js'

        },