diff options
Diffstat (limited to 'actionview/lib')
| -rw-r--r-- | actionview/lib/action_view/helpers/asset_tag_helper.rb | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/actionview/lib/action_view/helpers/asset_tag_helper.rb b/actionview/lib/action_view/helpers/asset_tag_helper.rb index bc2713d13e..f4f1030ac4 100644 --- a/actionview/lib/action_view/helpers/asset_tag_helper.rb +++ b/actionview/lib/action_view/helpers/asset_tag_helper.rb @@ -37,6 +37,9 @@ module ActionView # When the Asset Pipeline is enabled, you can pass the name of your manifest as # source, and include other JavaScript or CoffeeScript files inside the manifest. # + # If the server supports Early Hints header links for these assets will be + # automatically pushed. + # # ==== Options # # When the last parameter is a hash you can add HTML attributes using that @@ -77,12 +80,20 @@ module ActionView def javascript_include_tag(*sources) options = sources.extract_options!.stringify_keys path_options = options.extract!("protocol", "extname", "host", "skip_pipeline").symbolize_keys - sources.uniq.map { |source| + early_hints_links = [] + + sources_tags = sources.uniq.map { |source| + href = path_to_javascript(source, path_options) + early_hints_links << "<#{href}>; rel=preload; as=script" tag_options = { - "src" => path_to_javascript(source, path_options) + "src" => href }.merge!(options) content_tag("script".freeze, "", tag_options) }.join("\n").html_safe + + request.send_early_hints("Link" => early_hints_links.join("\n")) + + sources_tags end # Returns a stylesheet link tag for the sources specified as arguments. If @@ -92,6 +103,9 @@ module ActionView # to "screen", so you must explicitly set it to "all" for the stylesheet(s) to # apply to all media types. # + # If the server supports Early Hints header links for these assets will be + # automatically pushed. + # # stylesheet_link_tag "style" # # => <link href="/assets/style.css" media="screen" rel="stylesheet" /> # @@ -113,14 +127,22 @@ module ActionView def stylesheet_link_tag(*sources) options = sources.extract_options!.stringify_keys path_options = options.extract!("protocol", "host", "skip_pipeline").symbolize_keys - sources.uniq.map { |source| + early_hints_links = [] + + sources_tags = sources.uniq.map { |source| + href = path_to_stylesheet(source, path_options) + early_hints_links << "<#{href}>; rel=preload; as=stylesheet" tag_options = { "rel" => "stylesheet", "media" => "screen", - "href" => path_to_stylesheet(source, path_options) + "href" => href }.merge!(options) tag(:link, tag_options) }.join("\n").html_safe + + request.send_early_hints("Link" => early_hints_links.join("\n")) + + sources_tags end # Returns a link tag that browsers and feed readers can use to auto-detect |