should behave on only html

autoload/emmet/lang/html.vim

@@ -136,7 +136,7 @@ function! emmet#lang#html#parseIntoTree(abbr, type) abort
           let snippet = substitute(snippet, '|', '${cursor}', 'g')
         endif
         " just redirect to expanding
-        if snippet !~ '^\s*[{\[<]'
+        if type == 'html' && snippet !~ '^\s*[{\[<]'
            return emmet#lang#html#parseIntoTree(snippet, a:type)
         endif
         let lines = split(snippet, "\n", 1)