diff --git a/components/common.less b/components/common.less
index f50880a..9552965 100644
--- a/components/common.less
+++ b/components/common.less
@@ -55,6 +55,14 @@ body {
 		line-height: @heading-line-height;
 		margin-bottom: 0.25em;
 		padding: 0;
+
+		/* Fallback heading font for scripts which render poorly in @content-heading-font-family. */
+		/* See T73240 */
+		&:lang( ja ), /* See T65817 */
+		&:lang( he ), /* See T65843 and T65844 */
+		&:lang( ko ) { /* See T65827 */
+			font-family: @content-heading-font-family-generic;
+		}
 	}
 
 	h1 {
diff --git a/variables.less b/variables.less
index b17d15c..c703e22 100644
--- a/variables.less
+++ b/variables.less
@@ -11,6 +11,7 @@
 @content-padding: 1em;
 @content-heading-font-size: 1.8em;
 @content-heading-font-family: "Linux Libertine", Georgia, Times, serif;
+@content-heading-font-family-generic: sans-serif;
 @body-background-color: #fff;
 @heading-line-height: 1.3;