gulp-uglify creates wrong output

Question

I'm trying to run a task to minify and other stuff in my index.html:

gulp.task('bundle', function(){
    var assets = useref.assets();
    var autoprefixerConfig = {
        browsers: ['last 2 versions', '> 4%', '> 4% in BR'],
        cascade: false
    };

    return gulp.src('src/*.html')
        .pipe(assets)
        .pipe(gulpif('*.js', uglify()))
        .pipe(gulpif('*.css', autoprefixer(autoprefixerConfig), minifyCss()))
        .pipe(assets.restore())
        .pipe(useref())
        .pipe(minifyHtml())
        .pipe(gulp.dest('dist'));
});

But all javascripts (like bootstrap.js, respond.js...) appear to be wrong in output files.

What I'm doing wrong?

Answer 1

I created an individual task for minifyHtml and this solved the problem.

Thanks to @mitogh and @entre