fix: convert undefined into null inside GetStaticProps

Next.js was complaining because it cannot serialize undefined values.

1 files changed, 4 insertions, 3 deletions

diff --git a/src/pages/thematique/[slug].tsx b/src/pages/thematique/[slug].tsx
index 23e6a8b..9586f77 100644
--- a/src/pages/thematique/[slug].tsx
+++ b/src/pages/thematique/[slug].tsx
@@ -218,14 +218,15 @@ export const getStaticProps: GetStaticProps<ThematicPageProps> = async ({
   const allThematics = allThematicsEdges.edges.map((edge) =>
     getPageLinkFromRawData(edge.node)
   );
+  const allThematicsLinks = allThematics.filter(
+    (thematic) => thematic.slug !== (params!.slug as ThematicParams['slug'])
+  );
   const translation = await loadTranslation(locale);
 
   return {
     props: {
       currentThematic: JSON.parse(JSON.stringify(currentThematic)),
-      thematics: allThematics.filter(
-        (thematic) => thematic.slug !== (params!.slug as ThematicParams['slug'])
-      ),
+      thematics: JSON.parse(JSON.stringify(allThematicsLinks)),
       translation,
     },
   };