From 0bf9f375498f48cf5d2f1dd872a8c5c0a46a6c96 Mon Sep 17 00:00:00 2001
From: Rainer Simon <rainer.simon@ait.ac.at>
Date: Fri, 7 Aug 2020 09:28:43 +0200
Subject: [PATCH] Rendering no longer breaks when single annotation is broken

---
 src/highlighter/Highlighter.js | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/src/highlighter/Highlighter.js b/src/highlighter/Highlighter.js
index 3fc2f2f..3097617 100644
--- a/src/highlighter/Highlighter.js
+++ b/src/highlighter/Highlighter.js
@@ -41,15 +41,21 @@ export default class Highlighter {
   })
 
   _addAnnotation = annotation => {
-    const [ domStart, domEnd ] = this.charOffsetsToDOMPosition([ annotation.start, annotation.end ]);
+    try {
+      const [ domStart, domEnd ] = this.charOffsetsToDOMPosition([ annotation.start, annotation.end ]);
 
-    const range = document.createRange();
-    range.setStart(domStart.node, domStart.offset);
-    range.setEnd(domEnd.node, domEnd.offset);
+      const range = document.createRange();
+      range.setStart(domStart.node, domStart.offset);
+      range.setEnd(domEnd.node, domEnd.offset);
 
-    const spans = this.wrapRange(range);
-    this.applyStyles(annotation, spans);
-    this.bindAnnotation(annotation, spans);
+      const spans = this.wrapRange(range);
+      this.applyStyles(annotation, spans);
+      this.bindAnnotation(annotation, spans);
+    } catch (error) {
+      console.warn('Could not render annotation')
+      console.warn(error);
+      console.warn(annotation.underlying);
+    }
   }
 
   _findAnnotationSpans = annotation => {