Remove fallback GOV.UK logo for IE8

CHANGELOG.md

@@ -69,6 +69,20 @@ Use the classes starting with `.govuk-!-static-margin` and `.govuk-!-static-padd
 
 This change was introduced in [pull request #3593: Remove deprecated static spacing classes](https://github.com/alphagov/govuk-frontend/pull/3593).
 
+#### Remove the fallback GOV.UK crown logo from your HTML
+
+The header component previously included a fallback version of the GOV.UK crown logo for Internet Explorer 8. As Frontend no longer supports IE8, this fallback has been removed.
+
+If you're not using the Nunjucks macros, you'll need to remove this fallback from your HTML code. In your header component:
+
+1. Remove the block of HTML containing the `govuk-header__logotype-crown-fallback-image` image, starting with `<!--[if IE 8]>` and ending with `<![endif]-->`.
+2. Remove `<!--[if gt IE 8]><!-->` and ` <!--<![endif]-->` from around the `govuk-header__logotype-crown` SVG, but don't remove the SVG.
+3. Delete the `govuk-logotype-crown.png` file from your assets folder.
+
+You don't need to change any HTML if you're using the supplied Nunjucks macros, but may still need to remove the `govuk-logotype-crown.png` image depending on [how you are serving the font and image assets](https://frontend.design-system.service.gov.uk/importing-css-assets-and-javascript/#font-and-image-assets).
+
+This change was introduced in [pull request #3641: Remove fallback GOV.UK logo for IE8](https://github.com/alphagov/govuk-frontend/pull/3641).
+
 #### Remove deprecated `.govuk-header__link--service-name` class
 
 We've removed the `.govuk-header__link--service-name` class that we deprecated in [GOV.UK Frontend v4.2.0](https://github.com/alphagov/govuk-frontend/releases/tag/v4.2.0).

packages/govuk-frontend/src/govuk/components/header/_index.scss

@@ -62,13 +62,6 @@
     vertical-align: top;
   }
 
-  .govuk-header__logotype-crown-fallback-image {
-    width: 36px;
-    height: 32px;
-    border: 0;
-    vertical-align: bottom;
-  }
-
   .govuk-header__product-name {
     @include govuk-font($size: 24, $line-height: 1);
     display: inline-table;

packages/govuk-frontend/src/govuk/components/header/template.njk

@@ -1,12 +1,11 @@
 {% set menuButtonText = params.menuButtonText if params.menuButtonText else 'Menu' %}
 
 <header class="govuk-header {{ params.classes if params.classes }}" role="banner" data-module="govuk-header"
-        {%- for attribute, value in params.attributes %} {{attribute}}="{{value}}"{% endfor %}>
+  {%- for attribute, value in params.attributes %} {{attribute}}="{{value}}"{% endfor %}>
   <div class="govuk-header__container {{ params.containerClasses | default('govuk-width-container') }}">
     <div class="govuk-header__logo">
       <a href="{{ params.homepageUrl | default('/') }}" class="govuk-header__link govuk-header__link--homepage">
         <span class="govuk-header__logotype">
-          <!--[if gt IE 8]><!-->
           {#- We use an inline SVG for the crown so that we can cascade the
           currentColor into the crown whilst continuing to support older browsers
           which do not support external SVGs without a Javascript polyfill. This
@@ -33,10 +32,6 @@
               d="M25 30.2c3.5 1.5 7.7-.2 9.1-3.7 1.5-3.6-.2-7.8-3.9-9.2-3.6-1.4-7.6.3-9.1 3.9-1.4 3.5.3 7.5 3.9 9zM9 39.5c3.6 1.5 7.8-.2 9.2-3.7 1.5-3.6-.2-7.8-3.9-9.1-3.6-1.5-7.6.2-9.1 3.8-1.4 3.5.3 7.5 3.8 9zM4.4 57.2c3.5 1.5 7.7-.2 9.1-3.8 1.5-3.6-.2-7.7-3.9-9.1-3.5-1.5-7.6.3-9.1 3.8-1.4 3.5.3 7.6 3.9 9.1zm38.3-21.4c3.5 1.5 7.7-.2 9.1-3.8 1.5-3.6-.2-7.7-3.9-9.1-3.6-1.5-7.6.3-9.1 3.8-1.3 3.6.4 7.7 3.9 9.1zm64.4-5.6c-3.6 1.5-7.8-.2-9.1-3.7-1.5-3.6.2-7.8 3.8-9.2 3.6-1.4 7.7.3 9.2 3.9 1.3 3.5-.4 7.5-3.9 9zm15.9 9.3c-3.6 1.5-7.7-.2-9.1-3.7-1.5-3.6.2-7.8 3.7-9.1 3.6-1.5 7.7.2 9.2 3.8 1.5 3.5-.3 7.5-3.8 9zm4.7 17.7c-3.6 1.5-7.8-.2-9.2-3.8-1.5-3.6.2-7.7 3.9-9.1 3.6-1.5 7.7.3 9.2 3.8 1.3 3.5-.4 7.6-3.9 9.1zM89.3 35.8c-3.6 1.5-7.8-.2-9.2-3.8-1.4-3.6.2-7.7 3.9-9.1 3.6-1.5 7.7.3 9.2 3.8 1.4 3.6-.3 7.7-3.9 9.1zM69.7 17.7l8.9 4.7V9.3l-8.9 2.8c-.2-.3-.5-.6-.9-.9L72.4 0H59.6l3.5 11.2c-.3.3-.6.5-.9.9l-8.8-2.8v13.1l8.8-4.7c.3.3.6.7.9.9l-5 15.4v.1c-.2.8-.4 1.6-.4 2.4 0 4.1 3.1 7.5 7 8.1h.2c.3 0 .7.1 1 .1.4 0 .7 0 1-.1h.2c4-.6 7.1-4.1 7.1-8.1 0-.8-.1-1.7-.4-2.4V34l-5.1-15.4c.4-.2.7-.6 1-.9zM66 92.8c16.9 0 32.8 1.1 47.1 3.2 4-16.9 8.9-26.7 14-33.5l-9.6-3.4c1 4.9 1.1 7.2 0 10.2-1.5-1.4-3-4.3-4.2-8.7L108.6 76c2.8-2 5-3.2 7.5-3.3-4.4 9.4-10 11.9-13.6 11.2-4.3-.8-6.3-4.6-5.6-7.9 1-4.7 5.7-5.9 8-.5 4.3-8.7-3-11.4-7.6-8.8 7.1-7.2 7.9-13.5 2.1-21.1-8 6.1-8.1 12.3-4.5 20.8-4.7-5.4-12.1-2.5-9.5 6.2 3.4-5.2 7.9-2 7.2 3.1-.6 4.3-6.4 7.8-13.5 7.2-10.3-.9-10.9-8-11.2-13.8 2.5-.5 7.1 1.8 11 7.3L80.2 60c-4.1 4.4-8 5.3-12.3 5.4 1.4-4.4 8-11.6 8-11.6H55.5s6.4 7.2 7.9 11.6c-4.2-.1-8-1-12.3-5.4l1.4 16.4c3.9-5.5 8.5-7.7 10.9-7.3-.3 5.8-.9 12.8-11.1 13.8-7.2.6-12.9-2.9-13.5-7.2-.7-5 3.8-8.3 7.1-3.1 2.7-8.7-4.6-11.6-9.4-6.2 3.7-8.5 3.6-14.7-4.6-20.8-5.8 7.6-5 13.9 2.2 21.1-4.7-2.6-11.9.1-7.7 8.8 2.3-5.5 7.1-4.2 8.1.5.7 3.3-1.3 7.1-5.7 7.9-3.5.7-9-1.8-13.5-11.2 2.5.1 4.7 1.3 7.5 3.3l-4.7-15.4c-1.2 4.4-2.7 7.2-4.3 8.7-1.1-3-.9-5.3 0-10.2l-9.5 3.4c5 6.9 9.9 16.7 14 33.5 14.8-2.1 30.8-3.2 47.7-3.2z"
             ></path>
           </svg>
-          <!--<![endif]-->
-          <!--[if IE 8]>
-          <img src="{{ params.assetsPath | default('/assets/images') }}/govuk-logotype-crown.png" class="govuk-header__logotype-crown-fallback-image" width="36" height="32" alt="">
-          <![endif]-->
           <span class="govuk-header__logotype-text">
             GOV.UK
           </span>

packages/govuk-frontend/src/govuk/components/header/template.test.js

@@ -254,12 +254,5 @@ describe('header', () => {
     it('sets aria-hidden="true" so that it is ignored by assistive technologies', () => {
       expect($svg.attr('aria-hidden')).toEqual('true')
     })
-
-    describe('fallback PNG', () => {
-      it('is invisible to modern browsers', () => {
-        const $fallbackImage = $('.govuk-header__logotype-crown-fallback-image')
-        expect($fallbackImage.length).toEqual(0)
-      })
-    })
   })
 })