anchor.diff:        cozy.control.widget.button({
                           region: 'top.toolbar.right',
                           className: 'cozy-container-fullscreen',
  -                        template: '<button class="button--sm" data-toggle="button" data-slot="label"></button>',
  +                        template: '<button class="button--sm" data-toggle="button" data-slot="label" aria-label="Full screen"></button>',
                           data: { label: '<i id="fullscreen" class="icon-fullscreen-enter oi" data-glyph="fullscreen-enter" title="Fullscreen Mode" aria-hidden="true"></i>' },
                           onClick: function() {
                               reader.requestFullscreen();
  
positive.code:       cozy.control.widget.button({
    	    region: 'top.header.left',
    	    data: { label: '<i class="icon-x oi" data-glyph="x" aria-hidden="true"></i>'},
    	    template: `<button class="button--sm cozy-close" data-toggle="button" data-slot="label"></button>`,
    	    onClick: function() { window.location = "<%= "#{@back_link}" %>"; }
        }).addTo(reader);
        // Press brand widget
  
negative.code:       cozy.control.widget.panel({
          region: 'top.toolbar.left',
          data: { title: "<%= @citable_link %>"},
    	    template: `<div class="permalink-label"><label class="u-screenreader" for="permalink">Permalink</label><form><input data-slot="title" type="text" id="permalink" value="" readonly="readonly" onclick="this.select(); document.execCommand('copy');"></form></div>`,
        }).addTo(reader);
        // Citation widget
        cozy.control.citation({ region: 'top.toolbar.left' }).addTo(reader);
  