anchor.diff:  
     if appData.appcache_manifest
       h3 appcache manifest
  -    pre #{appData.appcache_manifest}
  +    if appData.appcache_manifest.error
  +      pre ERROR retrieving appcache manifest
  +    else
  +      pre #{appData.appcache_manifest}
  
positive.code: 
  block content
    .row
      .col-md-10
        h2
          img(src='#{appData.icons["128"]}', width=32, height=32)
          if appData.name['en-US']
            span #{appData.name['en-US']}
          else
            span #{appData.name[Object.keys(appData.name)[0]]}
      .col-md-2
        h3 #{appData.author}
  
    if appData.is_packaged
      button(data-package-manifest-url='#{appData.manifest_url}', class='btn btn-primary installButton') Install Packaged
  
negative.code: 
    hr
  
    h3 #{appData.author}
  
    div
      each type in appData.device_types
        span #{type}, 
  