fixed cards not working with external images

theme/templates/macros/cards.html

@@ -11,12 +11,24 @@
 {%- macro card(title, link, catcolor, lang) -%}
 	{%- set attr = namespace(classes=[], style={"--category-color": catcolor}) -%}
 	{%- set page = link.page -%}
+	{%- set ns = namespace(resolvedimageurl=None) -%}
 
 	{%- if page.metadata.has_image -%}
 		{%- set attr.classes = ["has-image"] -%}
-		{%- set imageurl = ["url('", [siteurl, page.metadata.image.link.url]|join("/"), "')"]|join() -%}
+
+		{#- Determine imageurl -#}
+		{%- set ns.resolvedimageurl = page.metadata.image.link.urlwithanchor -%}
+		{%- if not page.metadata.image.link.is_external -%}
+			{%- if page.metadata.image.link.url|length -%}
+				{%- set ns.resolvedimageurl = [siteurl, ns.resolvedimageurl]|join("/") -%}
+			{%- endif -%}
+		{%- endif -%}
+		{%- set imageurl = ["url('", ns.resolvedimageurl , "')"]|join() -%}
+
+		{#- set imageurl = ["url('", siteurl, "/", page.metadata.image.link.url, "')"]|join() -#}
 		{#- set imageurl = ["url('", ["http://127.0.0.1:8000/output", page.metadata.image.link.url]|join("/"), "')"]|join() -#}
 		{#- AHHHHHHHHH... Firefox interpretiert relative background-image urls falsch, wenn diese nicht direkt im inline-style sind! -#}
+
 		{%- set attr.style = {"--category-color": catcolor, "--card-image": imageurl, "background-image": imageurl } -%}
 	{%- endif -%}
 	<li>{{ common.render_link(link, title, lang, attr=attr) }}</li>