[Glitch] Fix WebUI crash on sensitive preview card with no preview thumbnail

Port 258171549120142a6a7dac40f17ecc2087433f4a to glitch-soc

Signed-off-by: Thibaut Girka <thib@sitedethib.com>

diff --git a/app/javascript/flavours/glitch/features/status/components/card.js b/app/javascript/flavours/glitch/features/status/components/card.js
index 4b66760628c0f9ce61113c966d779a6a917c3d26..b4db62f4a9a4ae435e28e472537c79ebf0543be0 100644 (file)
--- a/app/javascript/flavours/glitch/features/status/components/card.js
+++ b/app/javascript/flavours/glitch/features/status/components/card.js
@@ -98,7 +98,7 @@ export default class Card extends React.PureComponent {
   componentDidUpdate (prevProps) {
     const { card } = this.props;
 
-    if (card.get('blurhash') && (!prevProps.card || prevProps.card.get('blurhash') !== card.get('blurhash'))) {
+    if (card.get('blurhash') && (!prevProps.card || prevProps.card.get('blurhash') !== card.get('blurhash')) && this.canvas) {
       this._decode();
     }
   }