diff --git a/runtime/indent/javascript.vim b/runtime/indent/javascript.vim
index 3507e30..0d6c11d 100644
--- a/runtime/indent/javascript.vim
+++ b/runtime/indent/javascript.vim
@@ -1,8 +1,8 @@
 " Vim indent file
 " Language: Javascript
-" Maintainer: vim-javascript community
+" Maintainer: Chris Paul ( https://github.com/bounceme )
 " URL: https://github.com/pangloss/vim-javascript
-" Last Change: August 12, 2016
+" Last Change: August 25, 2016
 
 " Only load this indent file when no other was loaded.
 if exists('b:did_indent')
@@ -12,11 +12,11 @@
 
 " Now, set up our indentation expression and keys that trigger it.
 setlocal indentexpr=GetJavascriptIndent()
-setlocal nolisp
+setlocal nolisp noautoindent nosmartindent
 setlocal indentkeys=0{,0},0),0],:,!^F,o,O,e
 setlocal cinoptions+=j1,J1
 
-let b:undo_indent = 'setlocal indentexpr< indentkeys< cinoptions<'
+let b:undo_indent = 'setlocal indentexpr< smartindent< autoindent< indentkeys< cinoptions<'
 
 " Only define the function once.
 if exists('*GetJavascriptIndent')
@@ -37,7 +37,7 @@
   endfunction
 endif
 
-let s:line_pre = '^\s*\%(\/\*.\{-}\*\/\s*\)*'
+let s:line_pre = '^\s*\%(\%(\%(\/\*.\{-}\)\=\*\+\/\s*\)\=\)\@>'
 let s:expr_case = s:line_pre . '\%(\%(case\>.\+\)\|default\)\s*:'
 " Regex of syntax group names that are or delimit string or are comments.
 let s:syng_strcom = '\%(s\%(tring\|pecial\)\|comment\|regex\|doc\|template\)'
@@ -46,63 +46,63 @@
 let s:syng_comment = '\%(comment\|doc\)'
 
 " Expression used to check whether we should skip a match with searchpair().
-let s:skip_expr = "line('.') < (prevnonblank(v:lnum) - 2000) ? dummy : synIDattr(synID(line('.'),col('.'),0),'name') =~? '".s:syng_strcom."'"
+let s:skip_expr = "synIDattr(synID(line('.'),col('.'),0),'name') =~? '".s:syng_strcom."'"
 
-function s:lookForParens(start,end,flags,time)
-  if has('reltime')
-    return searchpair(a:start,'',a:end,a:flags,s:skip_expr,0,a:time)
-  else
-    return searchpair(a:start,'',a:end,a:flags,0,0)
-  endif
-endfunction
+if has('reltime')
+  function s:GetPair(start,end,flags,time)
+    return searchpair(a:start,'',a:end,a:flags,s:skip_expr,max([prevnonblank(v:lnum) - 2000,0]),a:time)
+  endfunction
+else
+  function s:GetPair(start,end,flags,n)
+    return searchpair(a:start,'',a:end,a:flags,0,max([prevnonblank(v:lnum) - 2000,0]))
+  endfunction
+endif
 
-let s:line_term = '\%(\s*\%(\/\*.\{-}\*\/\s*\)\=\)\@>$'
+let s:line_term = '\s*\%(\%(\/\%(\%(\*.\{-}\*\/\)\|\%(\*\+\)\)\)\s*\)\=$'
 
 " configurable regexes that define continuation lines, not including (, {, or [.
 if !exists('g:javascript_opfirst')
-  let g:javascript_opfirst = '\%([<>,:?^%]\|\([-/.+]\)\%(\1\|\*\|\/\)\@!\|\*\/\@!\|=>\@!\||\|&\|in\%(stanceof\)\=\>\)'
+  let g:javascript_opfirst = '\%([<>,:?^%|*&]\|\/[^/*]\|\([-.+]\)\1\@!\|=>\@!\|in\%(stanceof\)\=\>\)'
 endif
-let g:javascript_opfirst = s:line_pre . g:javascript_opfirst
-
 if !exists('g:javascript_continuation')
-  let g:javascript_continuation = '\%([<*,.?:^%]\|+\@<!+\|-\@<!-\|=\@<!>\|\*\@<!\/\|=\||\|&\|\<in\%(stanceof\)\=\)'
+  let g:javascript_continuation = '\%([<=,.?/*:^%|&]\|+\@<!+\|-\@<!-\|=\@<!>\|\<in\%(stanceof\)\=\)'
 endif
+
+let g:javascript_opfirst = s:line_pre . g:javascript_opfirst
 let g:javascript_continuation .= s:line_term
 
-function s:Onescope(lnum,text,add)
-  return a:text =~# '\%(\<else\|\<do\|=>' . (a:add ? '\|\<try\|\<finally' : '' ) . '\)' . s:line_term ||
+function s:OneScope(lnum,text,add)
+  return a:text =~# '\%(\<else\|\<do\|=>\)' . s:line_term ? 'no b' :
         \ ((a:add && a:text =~ s:line_pre . '$' && search('\%' . s:PrevCodeLine(a:lnum - 1) . 'l.)' . s:line_term)) ||
         \ cursor(a:lnum, match(a:text, ')' . s:line_term)) > -1) &&
-        \ s:lookForParens('(', ')', 'cbW', 100) > 0 && search((a:add ?
-        \ '\%(function\*\|[[:lower:][:upper:]_$][[:digit:][:lower:][:upper:]_$]*\)' :
-        \ '\<\%(for\%(\s\+each\)\=\|if\|let\|w\%(hile\|ith\)\)') . '\_s*\%#\C','bW') &&
-        \ (a:add || (expand('<cword>') ==# 'while' ? !s:lookForParens('\<do\>\C', '\<while\>\C','bW',100) : 1))
+        \ s:GetPair('(', ')', 'cbW', 100) > 0 && search('\C\l\+\_s*\%#','bW') &&
+        \ (a:add || ((expand('<cword>') !=# 'while' || !s:GetPair('\C\<do\>', '\C\<while\>','nbW',100)) &&
+        \ (expand('<cword>') !=# 'each' || search('\C\<for\_s\+\%#','nbW')))) ? expand('<cword>') : ''
+endfunction
+
+" https://github.com/sweet-js/sweet.js/wiki/design#give-lookbehind-to-the-reader
+function s:IsBlock()
+  return getline(line('.'))[col('.')-1] == '{' && !search(
+        \ '\C\%(\<return\s*\|\%([-=~!<*+,.?^%|&\[(]\|=\@<!>\|\*\@<!\/\|\<\%(var\|const\|let\|import\|export\%(\_s\+default\)\=\|yield\|delete\|void\|t\%(ypeof\|hrow\)\|new\|in\%(stanceof\)\=\)\)\_s*\)\%#','bnW') &&
+        \ (!search(':\_s*\%#','bW') || (!s:GetPair('[({[]','[])}]','bW',200) || s:IsBlock()))
 endfunction
 
 " Auxiliary Functions {{{2
 
-" strip line of comment
-function s:StripLine(c)
-  return a:c !~# s:expr_case ? substitute(a:c, '\%(:\@<!\/\/.*\)$', '','') : a:c
-endfunction
-
 " Find line above 'lnum' that isn't empty, in a comment, or in a string.
 function s:PrevCodeLine(lnum)
   let l:lnum = prevnonblank(a:lnum)
-  while l:lnum > 0
+  while l:lnum
     if synIDattr(synID(l:lnum,matchend(getline(l:lnum), '^\s*[^''"]'),0),'name') !~? s:syng_strcom
-      break
+      return l:lnum
     endif
     let l:lnum = prevnonblank(l:lnum - 1)
   endwhile
-  return l:lnum
 endfunction
 
 " Check if line 'lnum' has a balanced amount of parentheses.
 function s:Balanced(lnum)
-  let open_0 = 0
-  let open_2 = 0
-  let open_4 = 0
+  let [open_0,open_2,open_4] = [0,0,0]
   let l:line = getline(a:lnum)
   let pos = match(l:line, '[][(){}]', 0)
   while pos != -1
@@ -129,7 +129,7 @@
   let syns = synIDattr(synID(v:lnum, 1, 0), 'name')
 
   " start with strings,comments,etc.{{{2
-  if (l:line !~ '^[''"`]' && syns =~? 'string\|template') ||
+  if (l:line !~ '^[''"`]' && syns =~? '\%(string\|template\)') ||
         \ (l:line !~ '^\s*[/*]' && syns =~? s:syng_comment)
     return -1
   endif
@@ -153,15 +153,15 @@
   " the containing paren, bracket, curly. Memoize, last lineNr either has the
   " same scope or starts a new one, unless if it closed a scope.
   call cursor(v:lnum,1)
-  if b:js_cache[0] >= l:lnum  && b:js_cache[0] <= v:lnum && b:js_cache[0] &&
+  if b:js_cache[0] >= l:lnum  && b:js_cache[0] < v:lnum && b:js_cache[0] &&
         \ (b:js_cache[0] > l:lnum || s:Balanced(l:lnum) > 0)
     let num = b:js_cache[1]
   elseif syns != '' && l:line[0] =~ '\s'
     let pattern = syns =~? 'block' ? ['{','}'] : syns =~? 'jsparen' ? ['(',')'] :
           \ syns =~? 'jsbracket'? ['\[','\]'] : ['[({[]','[])}]']
-    let num = s:lookForParens(pattern[0],pattern[1],'bW',2000)
+    let num = s:GetPair(pattern[0],pattern[1],'bW',2000)
   else
-    let num = s:lookForParens('[({[]','[])}]','bW',2000)
+    let num = s:GetPair('[({[]','[])}]','bW',2000)
   endif
   let b:js_cache = [v:lnum,num,line('.') == v:lnum ? b:js_cache[2] : col('.')]
 
@@ -169,17 +169,19 @@
     return indent(num)
   endif
 
-  let pline = s:StripLine(getline(l:lnum))
-  let inb = num == 0 ? 1 : (s:Onescope(num, s:StripLine(strpart(getline(num),0,b:js_cache[2] - 1)),1) ||
-        \ (l:line !~ s:line_pre . ',' && pline !~ ',' . s:line_term)) && num < l:lnum
-  let switch_offset = (!inb || num == 0) || expand("<cword>") !=# 'switch' ? 0 : &cino !~ ':' || !has('float') ?  s:sw() :
+  call cursor(b:js_cache[1],b:js_cache[2])
+
+  let swcase = getline(l:lnum) =~# s:expr_case
+  let pline = swcase ? getline(l:lnum) : substitute(getline(l:lnum), '\%(:\@<!\/\/.*\)$', '','')
+  let inb = num == 0 || num < l:lnum && ((l:line !~ s:line_pre . ',' && pline !~ ',' . s:line_term) || s:IsBlock())
+  let switch_offset = num == 0 || s:OneScope(num, strpart(getline(num),0,b:js_cache[2] - 1),1) !=# 'switch' ? 0 :
+        \ &cino !~ ':' || !has('float') ?  s:sw() :
         \ float2nr(str2float(matchstr(&cino,'.*:\zs[-0-9.]*')) * (&cino =~# '.*:[^,]*s' ? s:sw() : 1))
 
   " most significant, find the indent amount
-  if (inb && (l:line =~# g:javascript_opfirst ||
-        \ (pline =~# g:javascript_continuation && pline !~# s:expr_case && (pline !~ ':' . s:line_term || l:line !~#
-        \ s:line_pre . '\%(d\%(o\|ebugger\)\|else\|f\%(or\|inally\)\|if\|let\|switch\|t\%(hrow\|ry\)\|w\%(hile\|ith\)\)\>')))) ||
-        \ (num < l:lnum && s:Onescope(l:lnum,pline,0) && l:line !~ s:line_pre . '{')
+  if inb && !swcase && ((l:line =~# g:javascript_opfirst || pline =~# g:javascript_continuation) ||
+        \ num < l:lnum && s:OneScope(l:lnum,pline,0) =~# '\<\%(for\|each\|if\|let\|no\sb\|w\%(hile\|ith\)\)\>' &&
+        \ l:line !~ s:line_pre . '{')
     return (num > 0 ? indent(num) : -s:sw()) + (s:sw() * 2) + switch_offset
   elseif num > 0
     return indent(num) + s:sw() + switch_offset