Emacs org-mode - format source block -

Emacs org-mode - format source block -

is possible org-mode utilize indentation rules of specified language? example, if have code below, i'd var x; indent when nail tab key (just in javascript mode).

#+begin_src javascript function foo() { var x; } #+end_src

i have set (setq org-src-fontify-natively t) has enabled syntax highlighting, not code formatting.

customize alternative org-src-tab-acts-natively t. setting tab works expect in source code block. additional indentation 2 spaces removed if tangle source code block or edit c-'. org-version 8.2.5h.

emacs org-mode