formally remove IE9 support

README.md

@@ -22,9 +22,9 @@ Browse [lots more notable Discourse instances](http://www.discourse.org/faq/cust
 
 ## Development
 
-1. If you're **brand new to Ruby and Rails**, please see [**Discourse as Your First Rails App**](http://blog.discourse.org/2013/04/discourse-as-your-first-rails-app/) or our [**Discourse Vagrant Developer Guide**](docs/VAGRANT.md), which includes a development environment in a virtual machine. 
+1. If you're **brand new to Ruby and Rails**, please see [**Discourse as Your First Rails App**](http://blog.discourse.org/2013/04/discourse-as-your-first-rails-app/) or our [**Discourse Vagrant Developer Guide**](docs/VAGRANT.md), which includes a development environment in a virtual machine.
 
-2. If you're familiar with how Rails works and are comfortable setting up your own environment, use our [**Discourse Advanced Developer Guide**](docs/DEVELOPER-ADVANCED.md). 
+2. If you're familiar with how Rails works and are comfortable setting up your own environment, use our [**Discourse Advanced Developer Guide**](docs/DEVELOPER-ADVANCED.md).
 
 Before you get started, ensure you have the following minimum versions: [Ruby 2.0.0+](http://www.ruby-lang.org/en/downloads/), [PostgreSQL 9.3+](http://www.postgresql.org/download/), [Redis 2.6+](http://redis.io/download). If you're having trouble, please see our [**TROUBLESHOOTING GUIDE**](docs/TROUBLESHOOTING.md) first!
 
@@ -40,13 +40,11 @@ Discourse is built for the *next* 10 years of the Internet, so our requirements
 
 | Browsers | Tablets |  Smartphones |
 | -------- | ------- | ----------- |
-| Safari 5.1+| iPad 2+ |  iOS 7+ | 
+| Safari 5.1+| iPad 2+ |  iOS 7+ |
 | Google Chrome 23+ |  Android 4.1+ | Android 4.1+ |
 | Internet Explorer 10+ | Windows 8 | Windows Phone 8 |
 | Firefox 16+ | |
 
-Internet Explorer 9.0 will no longer be supported in 2016.
-
 ## Built With
 
 - [Ruby on Rails](https://github.com/rails/rails) — Our back end API is a Rails app. It responds to requests RESTfully in JSON.

app/assets/javascripts/discourse/initializers/ie9-hax.js.es6

@@ -1,10 +0,0 @@
-export default {
-  name: 'ie9-hacks',
-  initialize: function() {
-    if (!window) { return; }
-
-    // IE9 does not support a console object unless the developer tools are open
-    if (!window.console) { window.console = {}; }
-    if (!window.console.log) { window.console.log = Ember.K; }
-  }
-};

app/assets/javascripts/discourse/routes/discourse.js.es6

@@ -89,7 +89,7 @@ export function cleanDOM() {
 
   // Remove any link focus
   // NOTE: the '.not("body")' is here to prevent a bug in IE10 on Win7
-  // cf. https://stackoverflow.com/questions/5657371/ie9-window-loses-focus-due-to-jquery-mobile
+  // cf. https://stackoverflow.com/questions/5657371
   $(document.activeElement).not("body").not(".no-blur").blur();
 
   Discourse.set('notifyCount',0);

app/assets/stylesheets/common/foundation/mixins.scss

@@ -101,15 +101,8 @@
   background-color: blend-primary-secondary(5%);
 }
 
-// We definately need -webkit for latest iPhone and Safari
-// When we deprecate IE9 we should clean up just to have webkit and non prefixed
-// ms is left around for ie9
-// moz is for firefox 15 (do we even work with that?)
-// -o would be for opera 11.5
+// We still need -webkit for latest iPhone and Safari
 @mixin transform($transforms) {
-       -o-transform: $transforms;
-     -moz-transform: $transforms;
-	    -ms-transform: $transforms;
 	-webkit-transform: $transforms;
-          transform: $transforms;
+            transform: $transforms;
 }

app/assets/stylesheets/desktop/compose.scss

@@ -109,9 +109,6 @@
   width: calc(50% - 65px);
 }
 
-// hide cancel upload link on IE9 (not supported)
-.ie9 #cancel-file-upload { display: none; }
-
 // only disabled when the device is touch-only
 .touch.mobile-device #reply-control.open .grippie {
   display: none;

app/controllers/uploads_controller.rb

@@ -9,9 +9,6 @@ class UploadsController < ApplicationController
     client_id = params[:client_id]
     synchronous = is_api? && params[:synchronous]
 
-    # HACK FOR IE9 to prevent the "download dialog"
-    response.headers["Content-Type"] = "text/plain" if request.user_agent =~ /MSIE 9/
-
     if type == "avatar"
       if SiteSetting.sso_overrides_avatar || !SiteSetting.allow_uploaded_avatars
         return render json: failed_json, status: 422

app/views/layouts/application.html.erb

@@ -1,6 +1,5 @@
 <!DOCTYPE html>
-<!--[if IE 9]><html lang="<%= SiteSetting.default_locale %>" class="ie9 <%= html_classes %>"><![endif]-->
-<!--[if (!IE 9) | (!IE)]><!--><html lang="<%= SiteSetting.default_locale %>" class="<%= html_classes %>"><!--<![endif]-->
+<html lang="<%= SiteSetting.default_locale %>" class="<%= html_classes %>">
   <head>
     <meta charset="utf-8">
     <title><%= content_for?(:title) ? yield(:title) + ' - ' + SiteSetting.title : SiteSetting.title %></title>
@@ -60,8 +59,6 @@
       </footer>
     </noscript>
 
-    <!--[if IE 9]><script type="text/javascript">ie = "new";</script><![endif]-->
-
     <%- unless customization_disabled? || loading_admin? %>
       <%= SiteCustomization.custom_header(session[:preview_style], mobile_view? ? :mobile : :desktop) %>
     <%- end %>

plugins/discourse-details/README.md

@@ -2,7 +2,7 @@
 
 HTML 5.1 `<details>` polyfill for [Discourse](https://www.discourse.org).
 
-NOTE: Does not work on IE9.
+NOTE: Does not work on IE9, but we don't support IE9 as of Jan 1 2016.
 
 ## Usage
 

vendor/assets/javascripts/browser-update.js.erb

@@ -17,7 +17,7 @@ var $buo = function() {
     badAndroid = true;
   }
 
-  // sam: my main concern here is mobile, but its an outlier, for now we support ie9, set conditionally and stuff with pushState
+  // sam: my main concern here is mobile, but its an outlier, for now we support ie10, set conditionally and stuff with pushState
   if (window.ie === "new" || (window.history && window.history.pushState && !badAndroid)) {
     return;
   }
@@ -62,4 +62,4 @@ var $buo = function() {
 
 $bu=$buo();
 
-})(this);
+})(this);