Uri.params not working in frontmatter?

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So, i decided to modify blog template (which leaves all the benefits, like Blog Config tab, pagination, breadcrumbs controls). Anyway you will get the idea.

  1. copy from Quark blog.html.twig file (quark/templates/blog.html.twig) and put it in your inherited theme in templates folder.
  2. rename the file (if you want to create your own rather than override a blog template). let’s say posts.html.twig (in this case the same for the blog.yaml file (quark/blueprints/blog.yaml) copy/paste/rename to the blueprints folder)
  3. open posts.html.twig file and:
    a. after the last set {% set show_pagination %} add this code
{% set page_title = page.title %}
{% if (uri.param('category') is defined and uri.param('category') is not empty) and (uri.param('tag') is defined and uri.param('tag') is not empty) %}
    {% set page_title = 'Category' ~ ': ' ~ uri.param('category')|capitalize ~ ' with ' ~ 'Tag' ~ ': '~ uri.param('tag')|capitalize %}
{% elseif uri.param('tag') is defined and uri.param('tag') is not empty %}
    {% set page_title = 'Tag' ~ ': '~ uri.param('tag')|capitalize %}
{% elseif uri.param('category') is defined and uri.param('category') is not empty %}
    {% set page_title = 'Category' ~ ': '~ uri.param('category')|capitalize %}
{% endif %}

b. then replace the {% block hero %} code with:

{% block hero %}
   {% set content %}
        <h1>{{ page_title|e }}</h1>
    {% endset %}
    {% if blog_image %}
        {% include 'partials/hero.html.twig' with {id: 'blog-hero', hero_image: blog_image} %}
    {% else %}
        {% include 'partials/hero.html.twig' with {id: 'blog-hero'} %}
    {% endif %}
{% endblock %}

  1. you can also modify blueprint, but just manually change Blog Route in admin to (/posts)

  2. it’s not the best solution for Google (you’ll need more complex code), but you can also put the results in the <title> tag by overriding {% block head %}.
    add the code after the page_title set (3.a)

{% block head deferred %}
    <meta charset="utf-8" />
    <title>{% if page_title %}{{ page_title|e('html') }} | {% endif %}{{ site.title|e('html') }}</title>
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    {% include 'partials/metadata.html.twig' %}
    <link rel="icon" type="image/png" href="{{ url('theme://images/favicon.png') }}" />
    <link rel="canonical" href="{{ page.url(true, true) }}" />
{% endblock head %}