Users cannot add topic pages to the mobile screen (when opening a topic)

nat · October 8, 2024, 9:11am

I don’t think that is possible unfortunately.

The “Add to Home Screen” functionality requires every web app to define a start_url, in which we have defined it as the root URL of your forum.

Here’s what our a2hs manifest looks like:

github.com

discourse/discourse/blob/229773e7a8603ef85fd25e28980be9961832a0d5/app/controllers/metadata_controller.rb#L53


      
          icon_url_base =
            UrlHelper.absolute("/svg-sprite/#{Discourse.current_hostname}/icon/#{primary_color}")
          
          manifest = {
            name: SiteSetting.title,
            short_name:
              SiteSetting.short_title.presence ||
                SiteSetting.title.truncate(12, separator: " ", omission: ""),
            description: SiteSetting.site_description,
            display: display,
            start_url: Discourse.base_path.present? ? "#{Discourse.base_path}/" : "/",
            background_color: "##{ColorScheme.hex_for_name("secondary", scheme_id)}",
            theme_color: "##{ColorScheme.hex_for_name("header_background", scheme_id)}",
            icons: [],
            share_target: {
              action: "#{Discourse.base_path}/new-topic",
              method: "GET",
              enctype: "application/x-www-form-urlencoded",
              params: {
                title: "title",
                text: "body",

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Users cannot add topic pages to the mobile screen (when opening a topic)

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