From 8f3197862d3d523c27c9e8f78949ff87cfd04e05 Mon Sep 17 00:00:00 2001
From: Grischan <glanzel@gmx.de>
Date: Mon, 30 Mar 2026 11:00:40 +0200
Subject: [PATCH 1/2] [ST-1816] a11y:Fix Html Errors

---
 meinberlin/apps/captcha/assets/captcheck.js   |   3 +-
 .../captcheck_captcha_widget.html             |   2 +-
 .../includes/form_field.html                  |   8 +
 .../meinberlin_plans/plan_detail.html         |   2 +-
 .../includes/module-tile/module_tile.html     |   2 +-
 .../includes/status_bar.html                  |  13 +-
 .../project_information.html                  |   2 +-
 tests/html_audit/ASANA_SUBTASK_MAPPING.md     |  56 ++++
 tests/html_audit/__init__.py                  |   1 +
 .../test_nu_html_checker_audit_messages.py    | 249 ++++++++++++++++++
 10 files changed, 324 insertions(+), 14 deletions(-)
 create mode 100644 tests/html_audit/ASANA_SUBTASK_MAPPING.md
 create mode 100644 tests/html_audit/__init__.py
 create mode 100644 tests/html_audit/test_nu_html_checker_audit_messages.py

diff --git a/meinberlin/apps/captcha/assets/captcheck.js b/meinberlin/apps/captcha/assets/captcheck.js
index 3adcafc9ae..1e8653a5ac 100644
--- a/meinberlin/apps/captcha/assets/captcheck.js
+++ b/meinberlin/apps/captcha/assets/captcheck.js
@@ -88,7 +88,8 @@ function initializeCaptcha () {
   /* Loop over all the CAPTCHA containers on the page, setting up a different CAPTCHA in each */
   Array.prototype.forEach.call(document.getElementsByClassName('captcheck_container'), function (container) {
     const apiUrl = container.getAttribute('data-api_url')
-    const combinedAnswerId = container.getAttribute('combined_answer_id')
+    const combinedAnswerId =
+      container.dataset.combinedAnswerId || container.getAttribute('combined_answer_id')
     const xhr = new XMLHttpRequest()
     xhr.open('GET', apiUrl + '?action=new', true)
     xhr.onreadystatechange = function () {
diff --git a/meinberlin/apps/captcha/templates/meinberlin_captcha/captcheck_captcha_widget.html b/meinberlin/apps/captcha/templates/meinberlin_captcha/captcheck_captcha_widget.html
index 91aac9c913..88134b1b4c 100644
--- a/meinberlin/apps/captcha/templates/meinberlin_captcha/captcheck_captcha_widget.html
+++ b/meinberlin/apps/captcha/templates/meinberlin_captcha/captcheck_captcha_widget.html
@@ -1,2 +1,2 @@
 <input type="hidden" id="{{ id }}" name="{{ name }}" value="">
-<div class="captcheck_container" data-api_url="{{ captcha_api_url }}" combined_answer_id="{{ id }}"></div>
+<div class="captcheck_container" data-api_url="{{ captcha_api_url }}" data-combined-answer-id="{{ id }}"></div>
diff --git a/meinberlin/apps/contrib/templates/meinberlin_contrib/includes/form_field.html b/meinberlin/apps/contrib/templates/meinberlin_contrib/includes/form_field.html
index dab2805a96..bd40cd11c0 100644
--- a/meinberlin/apps/contrib/templates/meinberlin_contrib/includes/form_field.html
+++ b/meinberlin/apps/contrib/templates/meinberlin_contrib/includes/form_field.html
@@ -1,14 +1,22 @@
 {% load i18n widget_tweaks %}
 
 <div class="form-group {% if add_class %}{{ add_class }}{% endif %} mb-2">
+    {% if field.field.widget.is_hidden %}
+    <div {% if tabindex %} tabindex="{{ tabindex }}" {% endif %} class="form-label" id="{{ field.id_for_label }}-labeltext">
+    {% else %}
     <label for="{{ field.id_for_label }}" {% if tabindex %} tabindex="{{ tabindex }}" {% endif %} class="form-label">
+    {% endif %}
         {{ field.label }}
         {% if field.field.required %}
             <span class="icon-required" aria-hidden="true">*</span>
             <span class="aural">{% translate 'This field is required' %}</span>
         {% endif %}
         {% block after_label %}{% endblock after_label %}
+    {% if field.field.widget.is_hidden %}
+    </div>
+    {% else %}
     </label>
+    {% endif %}
 
     {% if field.help_text and not field.name == "password" %}
         <span class="formgroup__help">
diff --git a/meinberlin/apps/plans/templates/meinberlin_plans/plan_detail.html b/meinberlin/apps/plans/templates/meinberlin_plans/plan_detail.html
index f3ad48e901..6b257c9519 100644
--- a/meinberlin/apps/plans/templates/meinberlin_plans/plan_detail.html
+++ b/meinberlin/apps/plans/templates/meinberlin_plans/plan_detail.html
@@ -122,7 +122,7 @@
 
             {% if object.has_contact_details or object.organisation %}
                 <section class="flexgrid grid--2 mb-3" aria-labelledby="contact-title">
-                    <h2>{% trans 'Contact Information' %}</h2>
+                    <h2 id="contact-title">{% trans 'Contact Information' %}</h2>
                     {% include 'meinberlin_projects/includes/contact_person.html' with contact=object only %}
                     {% include 'meinberlin_projects/includes/contact_organisation.html' with organisation=object.organisation only %}
                 </section>
diff --git a/meinberlin/apps/projects/templates/meinberlin_projects/includes/module-tile/module_tile.html b/meinberlin/apps/projects/templates/meinberlin_projects/includes/module-tile/module_tile.html
index dc253a97c0..ae8fc8d90d 100644
--- a/meinberlin/apps/projects/templates/meinberlin_projects/includes/module-tile/module_tile.html
+++ b/meinberlin/apps/projects/templates/meinberlin_projects/includes/module-tile/module_tile.html
@@ -10,7 +10,7 @@
 
     {% if module.module_running_time_left %}
 
-        {% include "meinberlin_projects/includes/status_bar.html" with progress=module.module_running_progress uniqueId="module-running-progress-{{ module.pk }}" time_left=module.module_running_time_left %}
+        {% include "meinberlin_projects/includes/status_bar.html" with progress=module.module_running_progress progress_bar_id=module.pk time_left=module.module_running_time_left %}
 
     {% elif not module.module_has_started %}
 
diff --git a/meinberlin/apps/projects/templates/meinberlin_projects/includes/status_bar.html b/meinberlin/apps/projects/templates/meinberlin_projects/includes/status_bar.html
index 03de6ddb52..441e44c3f0 100644
--- a/meinberlin/apps/projects/templates/meinberlin_projects/includes/status_bar.html
+++ b/meinberlin/apps/projects/templates/meinberlin_projects/includes/status_bar.html
@@ -3,18 +3,13 @@
 <progress
   value="{{ progress }}"
   max="100"
-  aria-valuenow="{{ progress }}"
-  aria-valuemin="0"
-  aria-valuemax="100"
-  id="{{ uniqueId }}"
+  id="module-running-progress-{{ progress_bar_id }}"
   class="status-bar"
+  aria-describedby="module-running-progress-{{ progress_bar_id }}-desc"
 >
   {{ progress }}%
 </progress>
-{% if not uniqueId %}
-  <p class="message--error">Please add a uniqueId to status_bar.html includes!</p>
-{% endif %}
-<label for="{{ uniqueId }}" class="status-bar__timespan">
+<span id="module-running-progress-{{ progress_bar_id }}-desc" class="status-bar__timespan">
   <i class="far fa-clock" role="img" aria-label="{% translate 'Clock' %}"></i>
   {% blocktranslate %}remaining {{ time_left }}{% endblocktranslate %}
-</label>
+</span>
diff --git a/meinberlin/apps/projects/templates/meinberlin_projects/project_information.html b/meinberlin/apps/projects/templates/meinberlin_projects/project_information.html
index 862abca1e0..71908fabfd 100644
--- a/meinberlin/apps/projects/templates/meinberlin_projects/project_information.html
+++ b/meinberlin/apps/projects/templates/meinberlin_projects/project_information.html
@@ -42,7 +42,7 @@ <h2 id="description-title">
             {% if project.has_contact_details or project.organisation %}
                 <hr aria-hidden="true" />
                 <section class="flexgrid grid--2 mb-3" aria-labelledby="contact-title">
-                    <h2>{% trans 'Contact Information' %}</h2>
+                    <h2 id="contact-title">{% trans 'Contact Information' %}</h2>
                     {% include 'meinberlin_projects/includes/contact_person.html' with contact=project only %}
                     {% include 'meinberlin_projects/includes/contact_organisation.html' with organisation=project.organisation only %}
                 </section>
diff --git a/tests/html_audit/ASANA_SUBTASK_MAPPING.md b/tests/html_audit/ASANA_SUBTASK_MAPPING.md
new file mode 100644
index 0000000000..86a4d1e7ba
--- /dev/null
+++ b/tests/html_audit/ASANA_SUBTASK_MAPPING.md
@@ -0,0 +1,56 @@
+# Audit subtasks vs this PR (errors / non-heading warnings)
+
+Parent: [ST-1816 — Fix HTML Errors](https://app.asana.com/1/1175467295883992/task/1213806008749002) · workspace `1175467295883992`
+
+Only subtasks that had **at least one Nu Html Checker error** (or a non–empty-heading warning still tracked here) are listed. Subtasks that documented **only** the empty-heading warning are omitted.
+
+Legend: **Fixed** = addressed in this codebase. **Not fixed** = still open or out of scope.
+
+---
+
+### [1213806008749008](https://app.asana.com/1/1175467295883992/task/1213806008749008) — `mein.berlin.de/` (2 errors, 4 heading warnings in audit table)
+
+- **Fixed (errors):** `aria-valuemax` (and related redundant ARIA) with native `max` on `<progress>`; `<label>` descendant of `<a>` (module status bar inside project module tiles).
+- **Not fixed (warnings):** “Article lacks heading” for homepage icon-list-style blocks (not changed here; markup differs from `icon_block` / needs CMS or other follow-up).
+
+### [1213806008749011](https://app.asana.com/1/1175467295883992/task/1213806008749011) — Parkweißensee project
+
+- **Fixed (errors):** invalid `id` / `for` from unexpanded `{{ module.pk }}` in progress markup; `aria-valuemax` with `max`; `<label>` inside `<a>` (same module status bar partial).
+- **Not fixed:** —
+
+### [1213806008749012](https://app.asana.com/1/1175467295883992/task/1213806008749012) — Parkweißensee `/information/`
+
+- **Fixed (errors):** `aria-labelledby="contact-title"` with no matching `id` (added `id="contact-title"` on the contact `<h2>` in `project_information.html`).
+- **Not fixed:** —
+
+### [1213806008749014](https://app.asana.com/1/1175467295883992/task/1213806008749014) — Regionalkasse Marienfelde (first URL)
+
+- **Fixed (errors):** same module status bar bundle as Parkweißensee project (invalid `id`/`for`, redundant ARIA, `label` in `a`).
+- **Not fixed:** —
+
+### [1213806008749015](https://app.asana.com/1/1175467295883992/task/1213806008749015) — Regionalkasse (second URL)
+
+- **Fixed (errors):** same module status bar partial as other project pages (as far as that URL renders running modules with the tile).
+- **Not fixed:** —
+
+### [1213806008749016](https://app.asana.com/1/1175467295883992/task/1213806008749016) — `/accounts/signup/`
+
+- **Fixed (errors):** non-standard `combined_answer_id` on the Captcheck container → `data-combined-answer-id` + JS; `label for` pointing at a hidden captcha control → label replaced with a non-`for` label for hidden widgets in `form_field.html`.
+- **Not fixed:** —
+
+### Plan detail pages (same contact block as story; no separate URL subtask in the list)
+
+- **Fixed (errors):** `aria-labelledby="contact-title"` without target (`id="contact-title"` on contact `<h2>` in `plan_detail.html`).
+- **Not fixed:** —
+
+---
+
+### Empty heading (`<h3 class="heading"></h3>`)
+
+Not mapped to individual subtasks here. **We no longer reproduce this warning in the repo templates** (see `test_no_empty_heading_with_class_heading_in_templates`), and we **treat it as resolved** for our shipped markup (remaining cases on production, if any, are likely from third-party or non-template sources until re-validated).
+
+---
+
+### Meta / process subtasks (Info, Subtasks, a11y checklist, docs, UI testing, manual testing)
+
+No direct mapping to specific Nu Html Checker **errors**; **Fixed / Not fixed** not applicable here.
diff --git a/tests/html_audit/__init__.py b/tests/html_audit/__init__.py
new file mode 100644
index 0000000000..a4706a65ba
--- /dev/null
+++ b/tests/html_audit/__init__.py
@@ -0,0 +1 @@
+# HTML audit regression tests (Nu Html Checker style messages).
diff --git a/tests/html_audit/test_nu_html_checker_audit_messages.py b/tests/html_audit/test_nu_html_checker_audit_messages.py
new file mode 100644
index 0000000000..dd0eac57bb
--- /dev/null
+++ b/tests/html_audit/test_nu_html_checker_audit_messages.py
@@ -0,0 +1,249 @@
+"""
+Regression tests that mirror the meinBerlin HTML audit (Nu Html Checker style).
+
+Each test fails with a message matching the validator wording until the underlying
+markup issue is fixed. Run: venv/bin/python -m pytest tests/html_audit/ -v
+"""
+
+from __future__ import annotations
+
+import re
+from pathlib import Path
+
+import pytest
+from django.template import engines
+from django.template.loader import render_to_string
+
+from meinberlin.apps.captcha.widgets import CaptcheckCaptchaWidget
+
+REPO_ROOT = Path(__file__).resolve().parents[2]
+MEINBERLIN_HTML_GLOB = "meinberlin/**/*.html"
+
+
+def _django_template_from_string(template_code: str):
+    return engines["django"].from_string(template_code)
+
+
+def _render_status_bar(
+    *, progress: int, progress_bar_id, time_left: str = "1 day"
+) -> str:
+    return render_to_string(
+        "meinberlin_projects/includes/status_bar.html",
+        {
+            "progress": progress,
+            "progress_bar_id": progress_bar_id,
+            "time_left": time_left,
+        },
+    )
+
+
+def test_progress_must_not_combine_native_max_with_aria_valuemax():
+    """
+    Nu Html Checker: The "aria-valuemax" attribute must not be used on an element
+    which has a "max" attribute.
+    """
+    html = _render_status_bar(progress=53, progress_bar_id=2517)
+    msg = (
+        'Nu Html Checker: The "aria-valuemax" attribute must not be used on an '
+        'element which has a "max" attribute.'
+    )
+    assert 'max="100"' in html, "fixture must include native max"
+    assert "aria-valuemax" not in html, msg
+
+
+def test_label_must_not_be_descendant_of_anchor_around_status_bar():
+    """
+    Nu Html Checker: The element "label" must not appear as a descendant of the
+    "a" element. (Same structure as module tile wrapping the status bar.)
+    """
+    tpl = _django_template_from_string(
+        "{% load i18n %}"
+        '<a href="/module/slug/" class="module-tile">'
+        '{% include "meinberlin_projects/includes/status_bar.html" with '
+        'progress=50 progress_bar_id=1 time_left="1 day" %}'
+        "</a>"
+    )
+    html = tpl.render({})
+    msg = (
+        'Nu Html Checker: The element "label" must not appear as a descendant of '
+        'the "a" element.'
+    )
+    assert "<label" not in html, msg
+
+
+def test_progress_and_label_ids_must_be_valid_html_ids():
+    """
+    Nu Html Checker: Bad value for attribute "id" on element "progress": An ID
+    must not contain whitespace (and must not contain raw template syntax).
+
+    Use progress_bar_id=module.pk in the include (not a quoted string containing
+    ``{{ module.pk }}``, which Django does not interpolate inside include ``with``).
+    """
+    html = _render_status_bar(progress=81, progress_bar_id=123, time_left="1 day")
+    msg = (
+        'Nu Html Checker: Bad value for attribute "id" on element "progress": '
+        "An ID must not contain whitespace or template placeholders."
+    )
+    m = re.search(r'<progress[^>]*\bid="([^"]*)"', html)
+    assert m, "expected progress id attribute in rendered HTML"
+    id_value = m.group(1)
+    assert id_value == "module-running-progress-123", msg
+    assert "{{" not in id_value and "}}" not in id_value, msg
+    assert " " not in id_value, msg
+    assert 'id="module-running-progress-123-desc"' in html
+
+
+def test_project_information_contact_section_aria_labelledby_target_must_exist():
+    """
+    Nu Html Checker: The "aria-labelledby" attribute must point to an element in
+    the same document.
+    """
+    path = (
+        REPO_ROOT
+        / "meinberlin/apps/projects/templates/meinberlin_projects/project_information.html"
+    )
+    text = path.read_text(encoding="utf-8")
+    msg = (
+        'Nu Html Checker: The "aria-labelledby" attribute must point to an element '
+        'in the same document (missing id="contact-title" on the contact heading).'
+    )
+    assert (
+        'aria-labelledby="contact-title"' in text
+    ), "fixture must reference contact-title"
+    assert re.search(
+        r'<h2\s+[^>]*\bid="contact-title"',
+        text,
+    ), msg
+
+
+def test_plan_detail_contact_section_aria_labelledby_target_must_exist():
+    path = (
+        REPO_ROOT / "meinberlin/apps/plans/templates/meinberlin_plans/plan_detail.html"
+    )
+    text = path.read_text(encoding="utf-8")
+    msg = (
+        'Nu Html Checker: The "aria-labelledby" attribute must point to an element '
+        'in the same document (missing id="contact-title" on the contact heading).'
+    )
+    assert 'aria-labelledby="contact-title"' in text
+    assert re.search(
+        r'<h2\s+[^>]*\bid="contact-title"',
+        text,
+    ), msg
+
+
+def test_captcheck_container_must_not_use_invalid_custom_attribute():
+    """
+    Nu Html Checker: Attribute "combined_answer_id" not allowed on element "div"
+    at this point (non-data custom attribute).
+    """
+    widget = CaptcheckCaptchaWidget()
+    html = widget.render(
+        "captcha",
+        None,
+        {"id": "id_captcha"},
+        renderer=None,
+    )
+    msg = (
+        'Nu Html Checker: Attribute "combined_answer_id" not allowed on element '
+        '"div" at this point (use a data-* attribute and update captcheck.js).'
+    )
+    assert "combined_answer_id" not in html, msg
+
+
+def test_signup_captcha_label_must_not_reference_hidden_control_only():
+    """
+    Nu Html Checker: The value of the "for" attribute of the "label" element must
+    be the ID of a non-hidden form control (captcha uses HiddenInput).
+    """
+    tpl = _django_template_from_string(
+        "{% load i18n widget_tweaks %}"
+        "{% include 'meinberlin_contrib/includes/form_field.html' with field=field %}"
+    )
+    from meinberlin.apps.users.forms import TermsSignupForm
+
+    form = TermsSignupForm()
+    if "captcha" not in form.fields:
+        pytest.skip("captcha field not enabled in test settings")
+    html = tpl.render({"field": form["captcha"]})
+    msg = (
+        'Nu Html Checker: The value of the "for" attribute of the "label" element '
+        "must be the ID of a non-hidden form control (captcha widget is type=hidden)."
+    )
+    assert 'for="id_captcha"' not in html, msg
+
+
+def test_no_empty_heading_with_class_heading_in_templates():
+    """
+    Nu Html Checker: Empty heading (e.g. <h3 class="heading"></h3>).
+    """
+    msg = 'Nu Html Checker: Empty heading. > <h3 class="heading"></h3>'
+    pattern = re.compile(
+        r'<h3\s+[^>]*class="heading"[^>]*>\s*</h3>',
+        re.IGNORECASE | re.DOTALL,
+    )
+    offenders: list[str] = []
+    for path in REPO_ROOT.glob(MEINBERLIN_HTML_GLOB):
+        if not path.is_file():
+            continue
+        try:
+            data = path.read_text(encoding="utf-8")
+        except OSError:
+            continue
+        if pattern.search(data):
+            offenders.append(str(path.relative_to(REPO_ROOT)))
+    assert not offenders, f"{msg} Found in: {offenders}"
+
+
+def test_article_icon_list_single_must_have_heading_or_not_use_article():
+    """
+    Nu Html Checker: Article lacks heading. Consider using h2-h6 inside article.
+
+    Applies when a teaser uses <article class="icon-list__single"> (or similar).
+    """
+    path = (
+        REPO_ROOT
+        / "meinberlin/apps/cms/templates/meinberlin_cms/blocks/icon_block.html"
+    )
+    text = path.read_text(encoding="utf-8")
+    msg = (
+        'Nu Html Checker: Article lacks heading. Consider using "h2"-"h6" elements '
+        "to add identifying headings to all articles. "
+        "(icon-list__single must not be a bare <article> without a heading.)"
+    )
+    if "<article" not in text.lower():
+        # Current implementation uses <div>; keep guard for future regressions.
+        assert "icon-list__single" in text
+        return
+    assert re.search(r"<h[1-6]\b", text, re.IGNORECASE), msg
+
+
+def test_synthetic_article_icon_list_without_heading_triggers_checker_message():
+    """Documents the checker rule using a minimal invalid snippet."""
+
+    def check_articles_have_headings(fragment: str) -> list[str]:
+        violations: list[str] = []
+        for m in re.finditer(
+            r"<article\b[^>]*>(.*?)</article>",
+            fragment,
+            re.IGNORECASE | re.DOTALL,
+        ):
+            inner = m.group(1)
+            if "icon-list__single" in m.group(0) and not re.search(
+                r"<h[1-6]\b", inner, re.IGNORECASE
+            ):
+                violations.append(
+                    'Nu Html Checker: Article lacks heading. Consider using "h2"-"h6" '
+                    "elements to add identifying headings to all articles."
+                )
+        return violations
+
+    bad = (
+        '<article class="icon-list__single">'
+        '<img src="x" alt="">'
+        "<p>text</p>"
+        "</article>"
+    )
+    msgs = check_articles_have_headings(bad)
+    assert msgs, "expected synthetic snippet to produce a heading warning message"
+    assert "Article lacks heading" in msgs[0]

From dcc3ecfc14c750551f831fcb5ba5ce27cab10403 Mon Sep 17 00:00:00 2001
From: Grischan <glanzel@gmx.de>
Date: Mon, 30 Mar 2026 11:08:12 +0200
Subject: [PATCH 2/2] Add Changelog

---
 CHANGELOG.md                              |  4 ++
 tests/html_audit/ASANA_SUBTASK_MAPPING.md | 56 -----------------------
 2 files changed, 4 insertions(+), 56 deletions(-)
 delete mode 100644 tests/html_audit/ASANA_SUBTASK_MAPPING.md

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 56db78c591..a7038e481a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ This project (not yet) adheres to [Semantic Versioning](https://semver.org/spec/
 
 ## Unreleased
 
+### Fixed
+
+- HTML errors (subdomain audit)
+
 ### Changed
 
 - Project and plan tiles: placeholder tile image copyright shows Senatskanzlei Berlin
diff --git a/tests/html_audit/ASANA_SUBTASK_MAPPING.md b/tests/html_audit/ASANA_SUBTASK_MAPPING.md
deleted file mode 100644
index 86a4d1e7ba..0000000000
--- a/tests/html_audit/ASANA_SUBTASK_MAPPING.md
+++ /dev/null
@@ -1,56 +0,0 @@
-# Audit subtasks vs this PR (errors / non-heading warnings)
-
-Parent: [ST-1816 — Fix HTML Errors](https://app.asana.com/1/1175467295883992/task/1213806008749002) · workspace `1175467295883992`
-
-Only subtasks that had **at least one Nu Html Checker error** (or a non–empty-heading warning still tracked here) are listed. Subtasks that documented **only** the empty-heading warning are omitted.
-
-Legend: **Fixed** = addressed in this codebase. **Not fixed** = still open or out of scope.
-
----
-
-### [1213806008749008](https://app.asana.com/1/1175467295883992/task/1213806008749008) — `mein.berlin.de/` (2 errors, 4 heading warnings in audit table)
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-- **Fixed (errors):** `aria-valuemax` (and related redundant ARIA) with native `max` on `<progress>`; `<label>` descendant of `<a>` (module status bar inside project module tiles).
-- **Not fixed (warnings):** “Article lacks heading” for homepage icon-list-style blocks (not changed here; markup differs from `icon_block` / needs CMS or other follow-up).
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-### [1213806008749011](https://app.asana.com/1/1175467295883992/task/1213806008749011) — Parkweißensee project
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-- **Fixed (errors):** invalid `id` / `for` from unexpanded `{{ module.pk }}` in progress markup; `aria-valuemax` with `max`; `<label>` inside `<a>` (same module status bar partial).
-- **Not fixed:** —
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-### [1213806008749012](https://app.asana.com/1/1175467295883992/task/1213806008749012) — Parkweißensee `/information/`
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-- **Fixed (errors):** `aria-labelledby="contact-title"` with no matching `id` (added `id="contact-title"` on the contact `<h2>` in `project_information.html`).
-- **Not fixed:** —
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-### [1213806008749014](https://app.asana.com/1/1175467295883992/task/1213806008749014) — Regionalkasse Marienfelde (first URL)
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-- **Fixed (errors):** same module status bar bundle as Parkweißensee project (invalid `id`/`for`, redundant ARIA, `label` in `a`).
-- **Not fixed:** —
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-### [1213806008749015](https://app.asana.com/1/1175467295883992/task/1213806008749015) — Regionalkasse (second URL)
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-- **Fixed (errors):** same module status bar partial as other project pages (as far as that URL renders running modules with the tile).
-- **Not fixed:** —
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-### [1213806008749016](https://app.asana.com/1/1175467295883992/task/1213806008749016) — `/accounts/signup/`
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-- **Fixed (errors):** non-standard `combined_answer_id` on the Captcheck container → `data-combined-answer-id` + JS; `label for` pointing at a hidden captcha control → label replaced with a non-`for` label for hidden widgets in `form_field.html`.
-- **Not fixed:** —
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-### Plan detail pages (same contact block as story; no separate URL subtask in the list)
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-- **Fixed (errors):** `aria-labelledby="contact-title"` without target (`id="contact-title"` on contact `<h2>` in `plan_detail.html`).
-- **Not fixed:** —
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----
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-### Empty heading (`<h3 class="heading"></h3>`)
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-Not mapped to individual subtasks here. **We no longer reproduce this warning in the repo templates** (see `test_no_empty_heading_with_class_heading_in_templates`), and we **treat it as resolved** for our shipped markup (remaining cases on production, if any, are likely from third-party or non-template sources until re-validated).
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-### Meta / process subtasks (Info, Subtasks, a11y checklist, docs, UI testing, manual testing)
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-No direct mapping to specific Nu Html Checker **errors**; **Fixed / Not fixed** not applicable here.