I found only one solution for me.
- create build for client side code by
ng build --prod
- Using gulp copy generated files into Laravel public dir
gulp copy (here you can check if old build files exists remove them)
- Using gulp-ingect plugin inject copied files into layout
gulp inject
-- This can be used in CI and done with automation tools. In result we have inline.js and three *.**.bundle.js files injected. In same main layout i have statically add <base href="/example"> (you can use any defined in Laravel routes root path here) and inside template file which loaded from this path (in my case 'example.blade.php') add angular 2 root element <st-example>Loading...</st-example>
-- By this set up you have root Laravel layout which have inside required by angular 2 root url href and injected scripts files from build. And your template file for current route have root element inside (it included to main layout by simple blade yeild('content')).
P.S. also you must notice that if you are using some http requests in angular 2, after you integrate it into Laravel project this will add csrf protection middleware to each request... And if you have some new errors in requests which work previously just check headers.