class Loofah::Scrubbers::Unprintable
scrub!(:unprintable)¶ ↑
:unprintable
removes unprintable Unicode characters.
markup = "<p>Some text with an unprintable character at the end\u2028</p>" Loofah.fragment(markup).scrub!(:unprintable) => "<p>Some text with an unprintable character at the end</p>"
You may not be able to see the unprintable character in the above example, but there is a U+2028 character right before the closing </p> tag. These characters can cause issues if the content is ever parsed by JavaScript - more information here:
http://timelessrepo.com/json-isnt-a-javascript-subset
Public Class Methods
new()
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# File lib/loofah/scrubbers.rb, line 229 def initialize @direction = :top_down end
Public Instance Methods
scrub(node)
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# File lib/loofah/scrubbers.rb, line 233 def scrub(node) if node.type == Nokogiri::XML::Node::TEXT_NODE node.content = node.content.gsub(/\u2028|\u2029/, '') end CONTINUE end