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Editorial Team
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Asked: 2026-05-18T10:00:29+00:00

>> h={:title => hi & mv288 } => {:title=>hi & mv288} >> h.to_xml =>

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>> h={:title => "hi & mv288" }
=> {:title=>"hi & mv288"}
>> h.to_xml
=> "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<hash>\n  <title>hi &amp;amp; mv288</title>\n</hash>\n"
>> Hash.from_xml h.to_xml
=> {"hash"=>{"title"=>"hi & mv288"}}

If you notice line#2 and #4, the &amp; characters in the title value became & after
a series of Hash.to_xml and from_xml method calls.

Is there any way to prevent Hash.from_xml from converting &amp; into &.

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1 Answer

  1. Editorial Team

    We switched the xml parser to Nokogiri to resolve this issue.

    Add this line in your environment.rb

    ActiveSupport::XmlMini.backend = 'Nokogiri'

    You will have to have nokogiri gem installed though. If you need a pure
    java implementation of nokogiri, check this out.
    https://github.com/tenderlove/nokogiri/wiki/pure-java-nokogiri-for-jruby

    The installation command is,

    gem install nokogiri --pre

    You may also use LibXml as XmlMiini.backend to resolve this issue.

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