Version 8.1.2

getnikola · Nov 15, 2020 · af754d3 · af754d3
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diff --git a/CHANGES.txt b/CHANGES.txt
@@ -1,4 +1,4 @@
-New in master
+New in v8.1.2
 =============
 
 Features
@@ -13,8 +13,7 @@ Features
   with ``<span class="caps">`` (via Issue #3405)
 * Improve ``nikola auto`` performance with rate-limiting, support
   ``-n`` argument to pass to ``nikola build`` (Issue #3401)
-* Added Marathi translation
-* Add support for the `Utterances <https://utteranc.es>`_ comment system.
+* Add support for the `Utterances <https://utteranc.es>`_ comment system
 
 Bugfixes
 --------
@@ -37,10 +36,10 @@ Bugfixes
 * Ensure query strings and fragments are kept with ``URL_TYPE =
   "full_path"`` (Issue #3448)
 * Don’t run typogrify filters on ``<title>`` tag to avoid adding extra
-  tags(Issue #3405)
+  tags (Issue #3405)
 * Fix handling of duplicate plugins on Windows
 * Allow else clause in post-list plugin. (Issue #3436)
-* Ensure `type` metadata value from plugins is preserved (Issue 3445)
+* Ensure ``type`` metadata value from plugins is preserved (Issue 3445)
 * Fix path handlers with slashes on Windows
 
 New in v8.1.1

diff --git a/docs/extending.rst b/docs/extending.rst
@@ -6,7 +6,7 @@
 .. description:
 .. author: The Nikola Team
 
-:Version: 8.1.1
+:Version: 8.1.2
 :Author: Roberto Alsina <[email protected]>
 
 .. class:: alert alert-primary float-md-right

diff --git a/docs/man/nikola.1.gz b/docs/man/nikola.1.gz
diff --git a/docs/man/nikola.rst b/docs/man/nikola.rst
@@ -6,7 +6,7 @@ Nikola
 A Static Site and Blog Generator
 --------------------------------
 
-:Version: Nikola 8.1.1
+:Version: Nikola 8.1.2
 :Manual section: 1
 :Manual group: User Commands
 

diff --git a/docs/manual.rst b/docs/manual.rst
@@ -7,7 +7,7 @@
 .. has_math: true
 .. author: The Nikola Team
 
-:Version: 8.1.1
+:Version: 8.1.2
 
 .. class:: alert alert-primary float-md-right
 
@@ -1865,7 +1865,7 @@ sure you have ``nikola`` and ``git`` installed on your PATH.
    * ``GITHUB_REMOTE_NAME`` is the remote to which changes are pushed.
    * ``GITHUB_COMMIT_SOURCE`` controls whether or not the source branch is
      automatically committed to and pushed. We recommend setting it to
-     ``True``, unless you are automating builds with Travis CI.
+     ``True``, unless you are automating builds with CI (eg. GitHub Actions/GitLab CI).
 
 4. Create a ``.gitignore`` file. We recommend adding at least the following entries:
 
@@ -1887,14 +1887,13 @@ If you want to use a custom domain, create your ``CNAME`` file in
 output directory. To add a custom commit message, use the ``-m`` option,
 followed by your message.
 
-Automated rebuilds (GitHub Actions, Travis CI, GitLab)
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Automated rebuilds (GitHub Actions, GitLab)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 If you want automated rebuilds and GitHub Pages deployment, allowing you to
 blog from anywhere in the world, you have multiple options:
 
 * `Automating Nikola rebuilds with GitHub Actions <https://getnikola.com/blog/automating-nikola-rebuilds-with-github-actions.html>`_ (easier for GitHub)
-* `Automating Nikola rebuilds with Travis CI <https://getnikola.com/blog/automating-nikola-rebuilds-with-travis-ci.html>`_
 * `Example Nikola site for GitLab Pages <https://gitlab.com/pages/nikola>`_
 
 Comments
@@ -2402,7 +2401,7 @@ You can apply filters to specific posts or pages by using the ``filters`` metada
 
     .. filters: filters.html_tidy_nowrap, "sed s/foo/bar %s"
 
-Please note that applying custom filters (not those provided via Nikola's filter module) 
+Please note that applying custom filters (not those provided via Nikola's filter module)
 via metadata only works for filters implemented via external programs like in that `sed` example.
 
 Optimizing Your Website

diff --git a/docs/social_buttons.rst b/docs/social_buttons.rst
@@ -6,7 +6,7 @@
 .. description:
 .. author: The Nikola Team
 
-:Version: 8.1.1
+:Version: 8.1.2
 
 .. class:: alert alert-primary float-md-right
 

diff --git a/docs/sphinx/conf.py b/docs/sphinx/conf.py
@@ -51,9 +51,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '8.1.1'
+version = '8.1.2'
 # The full version, including alpha/beta/rc tags.
-release = '8.1.1'
+release = '8.1.2'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

diff --git a/docs/support.rst b/docs/support.rst
@@ -4,7 +4,7 @@
 .. description: Get help using Nikola, or contact us.
 .. author: The Nikola Team
 
-:Version: 8.1.1
+:Version: 8.1.2
 
 .. class:: alert alert-primary float-md-right
 

diff --git a/docs/template-variables.rst b/docs/template-variables.rst
@@ -3,7 +3,7 @@
 .. date: 2017-04-13 12:00:00
 .. author: The Nikola Team
 
-:Version: 8.1.1
+:Version: 8.1.2
 :Author: Chris Warrick <[email protected]>
 
 Variables available in templates are listed below.

diff --git a/docs/theming.rst b/docs/theming.rst
@@ -6,7 +6,7 @@
 .. description:
 .. author: The Nikola Team
 
-:Version: 8.1.1
+:Version: 8.1.2
 :Author: Roberto Alsina <[email protected]>
 
 .. class:: alert alert-primary float-md-right

diff --git a/nikola/__init__.py b/nikola/__init__.py
@@ -29,7 +29,7 @@
 import os
 import sys
 
-__version__ = '8.1.1'
+__version__ = '8.1.2'
 DEBUG = bool(os.getenv('NIKOLA_DEBUG'))
 SHOW_TRACEBACKS = bool(os.getenv('NIKOLA_SHOW_TRACEBACKS'))
 

diff --git a/nikola/data/themes/base-jinja/templates/base_helper.tmpl b/nikola/data/themes/base-jinja/templates/base_helper.tmpl
@@ -82,7 +82,7 @@ lang="{{ lang }}">
             <script src="https://polyfill.io/v3/polyfill.js?features=Intl.RelativeTimeFormat.%7Elocale.{{ luxon_locales[lang] }}"></script>
         {% endif %}
         {% if use_cdn %}
-            <script src="https://cdn.jsdelivr.net/npm/luxon@1.24.1/build/global/luxon.min.js" integrity="sha256-5FiU7kNb/UJWqMesUFnKv4dJzLMiTWljH0ONkz+h704=" crossorigin="anonymous"></script>
+            <script src="https://cdn.jsdelivr.net/npm/luxon@1.25.0/build/global/luxon.min.js" integrity="sha256-OVk2fwTRcXYlVFxr/ECXsakqelJbOg5WCj1dXSIb+nU=" crossorigin="anonymous"></script>
         {% else %}
             <script src="/assets/js/luxon.min.js"></script>
         {% endif %}

diff --git a/nikola/data/themes/base-jinja/templates/comments_helper.tmpl b/nikola/data/themes/base-jinja/templates/comments_helper.tmpl
@@ -6,6 +6,7 @@
 {% import 'comments_helper_facebook.tmpl' as facebook with context %}
 {% import 'comments_helper_isso.tmpl' as isso with context %}
 {% import 'comments_helper_commento.tmpl' as commento with context %}
+{% import 'comments_helper_utterances.tmpl' as utterances with context %}
 
 {% macro comment_form(url, title, identifier) %}
     {% if comment_system == 'disqus' %}
@@ -20,6 +21,8 @@
         {{ isso.comment_form(url, title, identifier) }}
     {% elif comment_system == 'commento' %}
         {{ commento.comment_form(url, title, identifier) }}
+    {% elif comment_system == 'utterances' %}
+        {{ utterances.comment_form(url, title, identifier) }}
     {% endif %}
 {% endmacro %}
 
@@ -36,6 +39,8 @@
         {{ isso.comment_link(link, identifier) }}
     {% elif comment_system == 'commento' %}
         {{ commento.comment_link(link, identifier) }}
+    {% elif comment_system == 'utterances' %}
+        {{ utterances.comment_link(link, identifier) }}
     {% endif %}
 {% endmacro %}
 
@@ -52,5 +57,7 @@
         {{ isso.comment_link_script() }}
     {% elif comment_system == 'commento' %}
         {{ commento.comment_link_script() }}
+    {% elif comment_system == 'utterances' %}
+        {{ utterances.comment_link_script() }}
     {% endif %}
 {% endmacro %}
diff --git a/nikola/data/themes/base-jinja/templates/comments_helper_utterances.tmpl b/nikola/data/themes/base-jinja/templates/comments_helper_utterances.tmpl
@@ -0,0 +1,23 @@
+{#  -*- coding: utf-8 -*- #}
+{% macro comment_form(url, title, identifier) %}
+    {% if comment_system_id %}
+        <div data-title="{{ title|e }}" id="utterances-thread"></div>
+        <script src="https://utteranc.es/client.js" repo="{{ comment_system_id }}"
+        {% if utterances_config %}
+        {% for k, v in utterances_config.items() %}
+        {{ k }}="{{ v }}"
+        {% endfor %}
+        {% endif %}
+        ></script>
+    {% endif %}
+{% endmacro %}
+
+{% macro comment_link(link, identifier) %}
+    {% if comment_system_id %}
+        <a href="{{ link }}#utterances-thread">{{ messages("Comments") }}</a>
+    {% endif %}
+{% endmacro %}
+
+
+{% macro comment_link_script() %}
+{% endmacro %}
diff --git a/nikola/data/themes/base-jinja/templates/gallery.tmpl b/nikola/data/themes/base-jinja/templates/gallery.tmpl
@@ -21,7 +21,7 @@
             <div class="thumnbnail-container">
                 <a href="{{ folder }}" class="thumbnail image-reference" title="{{ ftitle|e }}">
                     {% if fpost and fpost.previewimage %}
-                        <img src="{{ url_replacer(fpost.permalink(), fpost.previewimage, lang, 'full_path') }}" alt="{{ ftitle|e }}" loading="lazy" style="max-width:{{ thumbnail_size }}px; max-height:{{ thumbnail_size }}px;" />
+                        <img src="{{ fpost.previewimage }}" alt="{{ ftitle|e }}" loading="lazy" style="max-width:{{ thumbnail_size }}px; max-height:{{ thumbnail_size }}px;" />
                     {% else %}
                         <div style="height: {{ thumbnail_size }}px; width: {{ thumbnail_size }}px; background-color: #eee;"></div>
                     {% endif %}

diff --git a/nikola/data/themes/base-jinja/templates/index.tmpl b/nikola/data/themes/base-jinja/templates/index.tmpl
@@ -31,7 +31,11 @@
         <h1 class="p-name entry-title"><a href="{{ post.permalink() }}" class="u-url">{{ post.title()|e }}</a></h1>
         <div class="metadata">
             <p class="byline author vcard"><span class="byline-name fn" itemprop="author">
-            {% if author_pages_generated %}
+            {% if author_pages_generated and multiple_authors_per_post %}
+                {% for author in post.authors() %}
+                    <a href="{{ _link('author', author) }}">{{ author|e }}</a>
+                {% endfor %}
+            {% elif author_pages_generated %}
                 <a href="{{ _link('author', post.author()) }}">{{ post.author()|e }}</a>
             {% else %}
                 {{ post.author()|e }}

diff --git a/nikola/data/themes/base-jinja/templates/post_header.tmpl b/nikola/data/themes/base-jinja/templates/post_header.tmpl
@@ -32,7 +32,11 @@
         {{ html_title() }}
         <div class="metadata">
             <p class="byline author vcard p-author h-card"><span class="byline-name fn p-name" itemprop="author">
-                {% if author_pages_generated %}
+                {% if author_pages_generated and multiple_authors_per_post %}
+                    {% for author in post.authors() %}
+                        <a class="u-url" href="{{ _link('author', author) }}">{{ author|e }}</a>
+                    {% endfor %}
+                {% elif author_pages_generated %}
                     <a class="u-url" href="{{ _link('author', post.author()) }}">{{ post.author()|e }}</a>
                 {% else %}
                     {{ post.author()|e }}

diff --git a/nikola/data/themes/base/templates/base_helper.tmpl b/nikola/data/themes/base/templates/base_helper.tmpl
@@ -82,7 +82,7 @@ lang="${lang}">
             <script src="https://polyfill.io/v3/polyfill.js?features=Intl.RelativeTimeFormat.%7Elocale.${luxon_locales[lang]}"></script>
         % endif
         % if use_cdn:
-            <script src="https://cdn.jsdelivr.net/npm/luxon@1.24.1/build/global/luxon.min.js" integrity="sha256-5FiU7kNb/UJWqMesUFnKv4dJzLMiTWljH0ONkz+h704=" crossorigin="anonymous"></script>
+            <script src="https://cdn.jsdelivr.net/npm/luxon@1.25.0/build/global/luxon.min.js" integrity="sha256-OVk2fwTRcXYlVFxr/ECXsakqelJbOg5WCj1dXSIb+nU=" crossorigin="anonymous"></script>
         % else:
             <script src="/assets/js/luxon.min.js"></script>
         % endif

diff --git a/nikola/data/themes/bootblog4-jinja/templates/base_helper.tmpl b/nikola/data/themes/bootblog4-jinja/templates/base_helper.tmpl
@@ -66,7 +66,7 @@ lang="{{ lang }}">
     {% if use_cdn %}
         <script src="http://code.jquery.com/jquery-3.5.1.min.js" integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" crossorigin="anonymous"></script>
         <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
-        <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script>
+        <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/js/bootstrap.min.js" integrity="sha384-w1Q4orYjBQndcko6MimVbzY0tgp4pWB4lZ7lr30WKz0vr/aWKhXdBNmNb5D92v7s" crossorigin="anonymous"></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/baguettebox.js/1.11.1/baguetteBox.min.js" integrity="sha256-ULQV01VS9LCI2ePpLsmka+W0mawFpEA0rtxnezUj4A4=" crossorigin="anonymous"></script>
     {% endif %}
     {% if use_bundles and use_cdn %}
@@ -86,7 +86,7 @@ lang="{{ lang }}">
             <script src="https://polyfill.io/v3/polyfill.js?features=Intl.RelativeTimeFormat.%7Elocale.{{ luxon_locales[lang] }}"></script>
         {% endif %}
         {% if use_cdn %}
-            <script src="https://cdn.jsdelivr.net/npm/luxon@1.24.1/build/global/luxon.min.js" integrity="sha256-5FiU7kNb/UJWqMesUFnKv4dJzLMiTWljH0ONkz+h704=" crossorigin="anonymous"></script>
+            <script src="https://cdn.jsdelivr.net/npm/luxon@1.25.0/build/global/luxon.min.js" integrity="sha256-OVk2fwTRcXYlVFxr/ECXsakqelJbOg5WCj1dXSIb+nU=" crossorigin="anonymous"></script>
         {% else %}
             <script src="/assets/js/luxon.min.js"></script>
         {% endif %}
@@ -100,7 +100,7 @@ lang="{{ lang }}">
 
 {% macro html_stylesheets() %}
     {% if use_cdn %}
-        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
+        <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/css/bootstrap.min.css" integrity="sha384-TX8t27EcRE3e/ihU7zmQxVncDAy5uIKz4rEkgIXeMed4M0jlfIDPvg6uqKI2xXr2" crossorigin="anonymous">
         <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/baguettebox.js/1.11.1/baguetteBox.min.css" integrity="sha256-cLMYWYYutHkt+KpNqjg7NVkYSQ+E2VbrXsEvOqU7mL0=" crossorigin="anonymous">
     {% endif %}
     {% if use_bundles and use_cdn %}

diff --git a/nikola/data/themes/bootblog4-jinja/templates/index.tmpl b/nikola/data/themes/bootblog4-jinja/templates/index.tmpl
@@ -31,7 +31,11 @@
                 <h1 class="p-name entry-title"><a href="{{ post.permalink() }}" class="u-url">{{ post.title()|e }}</a></h1>
                 <div class="metadata">
                     <p class="byline author vcard"><span class="byline-name fn" itemprop="author">
-                    {% if author_pages_generated %}
+                    {% if author_pages_generated and multiple_authors_per_post %}
+                        {% for author in post.authors() %}
+                            <a href="{{ _link('author', author) }}">{{ author|e }}</a>
+                        {% endfor %}
+                    {% elif author_pages_generated %}
                         <a href="{{ _link('author', post.author()) }}">{{ post.author()|e }}</a>
                     {% else %}
                         {{ post.author()|e }}
@@ -88,7 +92,7 @@
                         {% else %}
                         <div class="col-md-6 p-0 h-md-250 text-right d-none d-md-block">
                         {% endif %}
-                            <img class="bootblog4-featured-large-image" src="{{ url_replacer(featured[0].permalink(), featured[0].previewimage, lang, 'full_path') }}" alt="{{ featured.pop(0).title() }}">
+                            <img class="bootblog4-featured-large-image" src="{{ featured[0].previewimage }}" alt="{{ featured.pop(0).title() }}">
                         </div>
                     {% else %}
                         <div class="lead my-3 mb-0">{{ featured.pop(0).text(teaser_only=True, strip_html=theme_config.get('featured_strip_html', True)) }}</div>
@@ -113,7 +117,7 @@
                            {% if featured[0].previewimage %}
                                <div class="card-text mb-auto bootblog4-featured-text">{{ featured[0].text(teaser_only=True, strip_html=theme_config.get('featured_strip_html', True)) }}</div>
                                </div>
-                               <img class="card-img-right flex-auto d-none d-lg-block" src="{{ url_replacer(featured[0].permalink(), featured[0].previewimage, lang, 'full_path') }}" alt="{{ featured.pop(0).title() }}">
+                               <img class="card-img-right flex-auto d-none d-lg-block" src="{{ featured[0].previewimage }}" alt="{{ featured.pop(0).title() }}">
                            {% else %}
                            <div class="card-text mb-auto bootblog4-featured-text">{{ featured.pop(0).text(teaser_only=True, strip_html=theme_config.get('featured_strip_html', True)) }}</div>
                            </div>
@@ -131,7 +135,7 @@
                            {% if featured[0].previewimage %}
                                <div class="card-text mb-auto bootblog4-featured-text">{{ featured[0].text(teaser_only=True, strip_html=theme_config.get('featured_strip_html', True)) }}</div>
                                </div>
-                               <img class="card-img-right flex-auto d-none d-lg-block" src="{{ url_replacer(featured[0].permalink(), featured[0].previewimage, lang, 'full_path') }}" alt="{{ featured.pop(0).title() }}">
+                               <img class="card-img-right flex-auto d-none d-lg-block" src="{{ featured[0].previewimage }}" alt="{{ featured.pop(0).title() }}">
                            {% else %}
                            <div class="card-text mb-auto bootblog4-featured-text">{{ featured.pop(0).text(teaser_only=True, strip_html=theme_config.get('featured_strip_html', True)) }}</div>
                            </div>

diff --git a/nikola/data/themes/bootblog4/templates/base_helper.tmpl b/nikola/data/themes/bootblog4/templates/base_helper.tmpl
@@ -66,7 +66,7 @@ lang="${lang}">
     %if use_cdn:
         <script src="http://code.jquery.com/jquery-3.5.1.min.js" integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" crossorigin="anonymous"></script>
         <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
-        <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script>
+        <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/js/bootstrap.min.js" integrity="sha384-w1Q4orYjBQndcko6MimVbzY0tgp4pWB4lZ7lr30WKz0vr/aWKhXdBNmNb5D92v7s" crossorigin="anonymous"></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/baguettebox.js/1.11.1/baguetteBox.min.js" integrity="sha256-ULQV01VS9LCI2ePpLsmka+W0mawFpEA0rtxnezUj4A4=" crossorigin="anonymous"></script>
     % endif
     %if use_bundles and use_cdn:
@@ -86,7 +86,7 @@ lang="${lang}">
             <script src="https://polyfill.io/v3/polyfill.js?features=Intl.RelativeTimeFormat.%7Elocale.${luxon_locales[lang]}"></script>
         %endif
         %if use_cdn:
-            <script src="https://cdn.jsdelivr.net/npm/luxon@1.24.1/build/global/luxon.min.js" integrity="sha256-5FiU7kNb/UJWqMesUFnKv4dJzLMiTWljH0ONkz+h704=" crossorigin="anonymous"></script>
+            <script src="https://cdn.jsdelivr.net/npm/luxon@1.25.0/build/global/luxon.min.js" integrity="sha256-OVk2fwTRcXYlVFxr/ECXsakqelJbOg5WCj1dXSIb+nU=" crossorigin="anonymous"></script>
         %else:
             <script src="/assets/js/luxon.min.js"></script>
         %endif
@@ -100,7 +100,7 @@ lang="${lang}">
 
 <%def name="html_stylesheets()">
     % if use_cdn:
-        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
+        <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/css/bootstrap.min.css" integrity="sha384-TX8t27EcRE3e/ihU7zmQxVncDAy5uIKz4rEkgIXeMed4M0jlfIDPvg6uqKI2xXr2" crossorigin="anonymous">
         <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/baguettebox.js/1.11.1/baguetteBox.min.css" integrity="sha256-cLMYWYYutHkt+KpNqjg7NVkYSQ+E2VbrXsEvOqU7mL0=" crossorigin="anonymous">
     % endif
     %if use_bundles and use_cdn:

diff --git a/nikola/data/themes/bootstrap4-jinja/assets/css/theme.css b/nikola/data/themes/bootstrap4-jinja/assets/css/theme.css
@@ -222,6 +222,10 @@ pre.code {
     white-space: pre-wrap;
 }
 
+.byline a:not(:last-child):after {
+    content: ",";
+}
+
 /* Override incorrect Bootstrap 4 default */
 html[dir="rtl"] body {
     text-align: right;