simplify figure cache (#11)

content/articles/sublingual-ev.md

@@ -142,7 +142,7 @@ keywords: [补佳乐, 戊酸雌二醇片, 舌下含服, 用法用量]
 [wiki17]: https://en.wiktionary.org/wiki/concentration-time_curve
 [wiki18]: https://en.wikipedia.org/wiki/Premenopause
 [wiki19]: https://en.wikipedia.org/wiki/Menstrual_cycle
-[fig1]: fig1.png
+[fig1]: https://upload.wikimedia.org/wikipedia/commons/0/0c/Hormone_levels_with_oral_estradiol_valerate_tablets_%28Progynova%29_taken_sublingually_in_premenopausal_women.png
 [wiki20]: https://en.wikipedia.org/wiki/Progesterone
 [wiki21]: https://en.wikipedia.org/wiki/Luteinizing_hormone
 [wiki22]: https://en.wikipedia.org/wiki/Follicle-stimulating_hormone

themes/tfsci/layouts/_default/_markup/render-image.html

@@ -1,5 +1,10 @@
 {{- $src := .Destination -}}
-{{- if and (getenv "CI") (hasPrefix $src "https://transfemscience.org/assets/images/") -}}
+{{-
+$cachable := or
+  (hasPrefix $src "https://transfemscience.org/assets/images/")
+  (hasPrefix $src "https://upload.wikimedia.org/wikipedia/commons/")
+-}}
+{{- if and (getenv "CI") $cachable -}}
   {{- $image := resources.GetRemote $src -}}
   {{- if $image -}}
     {{- if eq $image.MediaType.SubType "svg" -}}