skip alert close button if javascript is not enabled

bootstrap4/components.py

@@ -5,6 +5,7 @@
 from bootstrap4.utils import render_tag, add_css_class
 
 from .text import text_value
+from .bootstrap import get_bootstrap_setting
 
 
 def render_alert(content, alert_type=None, dismissable=True):
@@ -15,7 +16,7 @@ def render_alert(content, alert_type=None, dismissable=True):
     if not alert_type:
         alert_type = "info"
     css_classes = ["alert", "alert-" + text_value(alert_type)]
-    if dismissable:
+    if dismissable and get_bootstrap_setting("use_javascript"):
         css_classes.append("alert-dismissable")
         button = (
             '<button type="button" class="close" '

bootstrap4/templates/bootstrap4/form_errors.html

@@ -1,5 +1,8 @@
+{% load bootstrap4 %}
 <div class="alert alert-danger alert-dismissable alert-link">
+    {% if 'use_javascript'|bootstrap_setting %}
     <button class="close" type="button" data-dismiss="alert" aria-hidden="true">&#215;</button>
+    {% endif %}
     {% for error in errors %}
         {{ error }}{% if not forloop.last %}<br>{% endif %}
     {% endfor %}

bootstrap4/templates/bootstrap4/messages.html

@@ -1,7 +1,9 @@
 {% load bootstrap4 %}
 {% for message in messages %}
     <div class="{{ message|bootstrap_message_classes }} alert-dismissable fade show">
+        {% if 'use_javascript'|bootstrap_setting %}
         <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&#215;</button>
+        {% endif %}
         {{ message }}
     </div>
 {% endfor %}