Add sanity checks to dom renderer underline code

Fixes #1860
2026-08-05 13:43:48 -07:00 · 2018-12-26 10:53:40 -08:00
parent 272cb08472
commit 9e3e724f63
1 changed files with 5 additions and 3 deletions
@@ -364,9 +364,11 @@ export class DomRenderer extends EventEmitter implements IRenderer {
        return;
      }
      const span = <HTMLElement>row.children[x];
-      span.style.textDecoration = enabled ? 'underline' : 'none';
-      x = (x + 1) % cols;
-      if (x === 0) {
+      if (span) {
+        span.style.textDecoration = enabled ? 'underline' : 'none';
+      }
+      if (++x >= cols) {
+        x = 0;
        y++;
      }
    }