feat: Guard against missing window.CSSStyleSheet (#1088)

2023-01-13 06:11:57 +01:00
parent 07aa1b2807
commit 57a2e140ea
1 changed files with 7 additions and 0 deletions
--- a/packages/rrweb/src/record/observer.ts
+++ b/packages/rrweb/src/record/observer.ts
@@ -538,6 +538,13 @@ function initStyleSheetObserver(
  { styleSheetRuleCb, mirror, stylesheetManager }: observerParam,
  { win }: { win: IWindow },
 ): listenerHandler {
+  if (!win.CSSStyleSheet || !win.CSSStyleSheet.prototype) {
+    // If, for whatever reason, CSSStyleSheet is not available, we skip the observation of stylesheets.
+    return () => {
+      // Do nothing
+    };
+  }
+
  // eslint-disable-next-line @typescript-eslint/unbound-method
  const insertRule = win.CSSStyleSheet.prototype.insertRule;
  win.CSSStyleSheet.prototype.insertRule = function (