Warning: missing space before text for line 7 of jade file

[mathieug]

I get the warning when content is a HTML content.

doctype html
html
  head
  body
      #content
        block content
            !{ content }

[ForbesLindesay]

Yes, that warning is correct because line 7 is !{ content }. The warning is because !{} and #{} are for interpolation within text. i.e. you have to be in text to start with. You should use = and != to buffer JavaScript expressions (see http://jade-lang.com/reference/code/):

doctype html
html
  head
  body
      #content
        block content
            != content

doctype html
html
  head
  body
      #content
        block content
            = content

Alternatively, put the interpolation inside plain-text.

doctype html
html
  head
  body
      #content
        block content
            | !{ content }

doctype html
html
  head
  body
      #content
        block content
            | #{ content }