discourse/app/assets/javascripts/admin/addon/templates/embedding.hbs

<div class="embeddable-hosts">
  {{#if this.embedding.embeddable_hosts}}
    <table class="embedding grid">
      <thead>
        <th style="width: 30%">{{i18n "admin.embedding.host"}}</th>
        <th style="width: 30%">{{i18n "admin.embedding.allowed_paths"}}</th>
        <th style="width: 30%">{{i18n "admin.embedding.category"}}</th>
        <th style="width: 10%">&nbsp;</th>
      </thead>
      <tbody>
        {{#each this.embedding.embeddable_hosts as |host|}}
          <EmbeddableHost @host={{host}} @deleteHost={{action "deleteHost"}} />
        {{/each}}
      </tbody>
    </table>
  {{else}}
    <p>{{i18n "admin.embedding.get_started"}}</p>
  {{/if}}

  <DButton
    @label="admin.embedding.add_host"
    @action={{action "addHost"}}
    @icon="plus"
    @class="btn-primary add-host"
  />
</div>

{{#if this.showSecondary}}
  <div class="embedding-secondary">
    {{html-safe (i18n "admin.embedding.sample")}}
    <HighlightedCode @code={{this.embeddingCode}} @lang="html" />
  </div>

  <hr />

  <div class="embedding-secondary">
    <h3>{{i18n "admin.embedding.settings"}}</h3>

    <EmbeddingSetting
      @field="embed_by_username"
      @value={{this.embedding.embed_by_username}}
    />
    <EmbeddingSetting
      @field="embed_post_limit"
      @value={{this.embedding.embed_post_limit}}
    />
    <EmbeddingSetting
      @field="embed_title_scrubber"
      @value={{this.embedding.embed_title_scrubber}}
      @placeholder="- site.com$"
    />
    <EmbeddingSetting
      @field="embed_truncate"
      @value={{this.embedding.embed_truncate}}
      @type="checkbox"
    />
    <EmbeddingSetting
      @field="embed_unlisted"
      @value={{this.embedding.embed_unlisted}}
      @type="checkbox"
    />
  </div>

  <div class="embedding-secondary">
    <h3>{{i18n "admin.embedding.crawling_settings"}}</h3>
    <p class="description">{{i18n "admin.embedding.crawling_description"}}</p>

    <EmbeddingSetting
      @field="allowed_embed_selectors"
      @value={{this.embedding.allowed_embed_selectors}}
      @placeholder="article, #story, .post"
    />

    <EmbeddingSetting
      @field="blocked_embed_selectors"
      @value={{this.embedding.blocked_embed_selectors}}
      @placeholder=".ad-unit, header"
    />

    <EmbeddingSetting
      @field="allowed_embed_classnames"
      @value={{this.embedding.allowed_embed_classnames}}
      @placeholder="emoji, classname"
    />
  </div>

  <div class="embedding-secondary">
    <DButton
      @label="admin.embedding.save"
      @action={{action "saveChanges"}}
      @class="btn-primary embed-save"
      @disabled={{this.embedding.isSaving}}
    />

    {{#if this.saved}}{{i18n "saved"}}{{/if}}
  </div>
{{/if}}