Diff + Preview - Fixing screenshot behaviour after preference change

changedetectionio/templates/diff.html

@@ -72,7 +72,7 @@
          </div>
          </br>
          {% if is_html_webdriver %}
-           {% if screenshot|length >1 %}
+           {% if screenshot %}
              <img style="max-width: 80%" id="screenshot-img" alt="Current screenshot from most recent request"/>
            {% else %}
               No screenshot available just yet! Try rechecking the page.

changedetectionio/templates/preview.html

@@ -39,7 +39,7 @@
          </div>
          </br>
          {% if is_html_webdriver %}
-           {% if screenshot|length >1 %}
+           {% if screenshot %}
              <img style="max-width: 80%" id="screenshot-img" alt="Current screenshot from most recent request"/>
            {% else %}
               No screenshot available just yet! Try rechecking the page.