[extensions-web/wip/tomtryf/redesign: 16/18] hashchange.js: Drop IE support

[Tom Tryfonidis <tomtryf src gnome org>]

commit d9a36f825479df6e84f65c801890f53bbbf5592e
Author: Tom Tryfonidis <tomtryf gnome org>
Date:   Thu Feb 23 20:52:25 2017 +0200

    hashchange.js: Drop IE support
    
    This also fixes the issue of undefined $.browser on JQuery > v1.9

 sweettooth/static/js/jquery.hashchange.js |   92 +----------------------------
 1 files changed, 1 insertions(+), 91 deletions(-)
---
diff --git a/sweettooth/static/js/jquery.hashchange.js b/sweettooth/static/js/jquery.hashchange.js
index 47105f4..0599a36 100644
--- a/sweettooth/static/js/jquery.hashchange.js
+++ b/sweettooth/static/js/jquery.hashchange.js
@@ -293,97 +293,7 @@
       
       timeout_id = setTimeout( poll, $.fn[ str_hashchange ].delay );
     };
-    
-    // vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
-    // vvvvvvvvvvvvvvvvvvv REMOVE IF NOT SUPPORTING IE6/7/8 vvvvvvvvvvvvvvvvvvv
-    // vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
-    $.browser.msie && !supports_onhashchange && (function(){
-      // Not only do IE6/7 need the "magical" Iframe treatment, but so does IE8
-      // when running in "IE7 compatibility" mode.
-      
-      var iframe,
-        iframe_src;
-      
-      // When the event is bound and polling starts in IE 6/7, create a hidden
-      // Iframe for history handling.
-      self.start = function(){
-        if ( !iframe ) {
-          iframe_src = $.fn[ str_hashchange ].src;
-          iframe_src = iframe_src && iframe_src + get_fragment();
-          
-          // Create hidden Iframe. Attempt to make Iframe as hidden as possible
-          // by using techniques from http://www.paciellogroup.com/blog/?p=604.
-          iframe = $('<iframe tabindex="-1" title="empty"/>').hide()
-            
-            // When Iframe has completely loaded, initialize the history and
-            // start polling.
-            .one( 'load', function(){
-              iframe_src || history_set( get_fragment() );
-              poll();
-            })
-            
-            // Load Iframe src if specified, otherwise nothing.
-            .attr( 'src', iframe_src || 'javascript:0' )
-            
-            // Append Iframe after the end of the body to prevent unnecessary
-            // initial page scrolling (yes, this works).
-            .insertAfter( 'body' )[0].contentWindow;
-          
-          // Whenever `document.title` changes, update the Iframe's title to
-          // prettify the back/next history menu entries. Since IE sometimes
-          // errors with "Unspecified error" the very first time this is set
-          // (yes, very useful) wrap this with a try/catch block.
-          doc.onpropertychange = function(){
-            try {
-              if ( event.propertyName === 'title' ) {
-                iframe.document.title = doc.title;
-              }
-            } catch(e) {}
-          };
-          
-        }
-      };
-      
-      // Override the "stop" method since an IE6/7 Iframe was created. Even
-      // if there are no longer any bound event handlers, the polling loop
-      // is still necessary for back/next to work at all!
-      self.stop = fn_retval;
-      
-      // Get history by looking at the hidden Iframe's location.hash.
-      history_get = function() {
-        return get_fragment( iframe.location.href );
-      };
-      
-      // Set a new history item by opening and then closing the Iframe
-      // document, *then* setting its location.hash. If document.domain has
-      // been set, update that as well.
-      history_set = function( hash, history_hash ) {
-        var iframe_doc = iframe.document,
-          domain = $.fn[ str_hashchange ].domain;
-        
-        if ( hash !== history_hash ) {
-          // Update Iframe with any initial `document.title` that might be set.
-          iframe_doc.title = doc.title;
-          
-          // Opening the Iframe's document after it has been closed is what
-          // actually adds a history entry.
-          iframe_doc.open();
-          
-          // Set document.domain for the Iframe document as well, if necessary.
-          domain && iframe_doc.write( '<script>document.domain="' + domain + '"</script>' );
-          
-          iframe_doc.close();
-          
-          // Update the Iframe's hash, for great justice.
-          iframe.location.hash = hash;
-        }
-      };
-      
-    })();
-    // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-    // ^^^^^^^^^^^^^^^^^^^ REMOVE IF NOT SUPPORTING IE6/7/8 ^^^^^^^^^^^^^^^^^^^
-    // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-    
+
     return self;
   })();