diff --git a/packages/rrweb/src/record/index.ts b/packages/rrweb/src/record/index.ts
index c862e1efd2..cfa271b5c8 100644
--- a/packages/rrweb/src/record/index.ts
+++ b/packages/rrweb/src/record/index.ts
@@ -36,7 +36,11 @@ import { IframeManager } from './iframe-manager';
 import { ShadowDomManager } from './shadow-dom-manager';
 import { CanvasManager } from './observers/canvas/canvas-manager';
 import { StylesheetManager } from './stylesheet-manager';
-import { callbackWrapper, registerErrorHandler, unregisterErrorHandler } from './errorHandler';
+import {
+  callbackWrapper,
+  registerErrorHandler,
+  unregisterErrorHandler,
+} from './errorHandler';
 
 function wrapEvent(e: event): eventWithTime {
   return {
diff --git a/packages/rrweb/src/record/observer.ts b/packages/rrweb/src/record/observer.ts
index b81c5c0970..c91f576cc2 100644
--- a/packages/rrweb/src/record/observer.ts
+++ b/packages/rrweb/src/record/observer.ts
@@ -173,36 +173,38 @@ function initMoveObserver({
     ),
     callbackThreshold,
   );
-  const updatePosition = callbackWrapper(throttle<MouseEvent | TouchEvent | DragEvent>(
-    callbackWrapper((evt) => {
-      const target = getEventTarget(evt);
-      const { clientX, clientY } = isTouchEvent(evt)
-        ? evt.changedTouches[0]
-        : evt;
-      if (!timeBaseline) {
-        timeBaseline = Date.now();
-      }
-      positions.push({
-        x: clientX,
-        y: clientY,
-        id: mirror.getId(target as Node),
-        timeOffset: Date.now() - timeBaseline,
-      });
-      // it is possible DragEvent is undefined even on devices
-      // that support event 'drag'
-      wrappedCb(
-        typeof DragEvent !== 'undefined' && evt instanceof DragEvent
-          ? IncrementalSource.Drag
-          : evt instanceof MouseEvent
-          ? IncrementalSource.MouseMove
-          : IncrementalSource.TouchMove,
-      );
-    }),
-    threshold,
-    {
-      trailing: false,
-    },
-  ));
+  const updatePosition = callbackWrapper(
+    throttle<MouseEvent | TouchEvent | DragEvent>(
+      callbackWrapper((evt) => {
+        const target = getEventTarget(evt);
+        const { clientX, clientY } = isTouchEvent(evt)
+          ? evt.changedTouches[0]
+          : evt;
+        if (!timeBaseline) {
+          timeBaseline = Date.now();
+        }
+        positions.push({
+          x: clientX,
+          y: clientY,
+          id: mirror.getId(target as Node),
+          timeOffset: Date.now() - timeBaseline,
+        });
+        // it is possible DragEvent is undefined even on devices
+        // that support event 'drag'
+        wrappedCb(
+          typeof DragEvent !== 'undefined' && evt instanceof DragEvent
+            ? IncrementalSource.Drag
+            : evt instanceof MouseEvent
+            ? IncrementalSource.MouseMove
+            : IncrementalSource.TouchMove,
+        );
+      }),
+      threshold,
+      {
+        trailing: false,
+      },
+    ),
+  );
   const handlers = [
     on('mousemove', updatePosition, doc),
     on('touchmove', updatePosition, doc),
@@ -281,33 +283,35 @@ export function initScrollObserver({
   observerParam,
   'scrollCb' | 'doc' | 'mirror' | 'blockClass' | 'blockSelector' | 'sampling'
 >): listenerHandler {
-  const updatePosition = callbackWrapper(throttle<UIEvent>(
-    callbackWrapper((evt) => {
-      const target = getEventTarget(evt);
-      if (
-        !target ||
-        isBlocked(target as Node, blockClass, blockSelector, true)
-      ) {
-        return;
-      }
-      const id = mirror.getId(target as Node);
-      if (target === doc && doc.defaultView) {
-        const scrollLeftTop = getWindowScroll(doc.defaultView);
-        scrollCb({
-          id,
-          x: scrollLeftTop.left,
-          y: scrollLeftTop.top,
-        });
-      } else {
-        scrollCb({
-          id,
-          x: (target as HTMLElement).scrollLeft,
-          y: (target as HTMLElement).scrollTop,
-        });
-      }
-    }),
-    sampling.scroll || 100,
-  ));
+  const updatePosition = callbackWrapper(
+    throttle<UIEvent>(
+      callbackWrapper((evt) => {
+        const target = getEventTarget(evt);
+        if (
+          !target ||
+          isBlocked(target as Node, blockClass, blockSelector, true)
+        ) {
+          return;
+        }
+        const id = mirror.getId(target as Node);
+        if (target === doc && doc.defaultView) {
+          const scrollLeftTop = getWindowScroll(doc.defaultView);
+          scrollCb({
+            id,
+            x: scrollLeftTop.left,
+            y: scrollLeftTop.top,
+          });
+        } else {
+          scrollCb({
+            id,
+            x: (target as HTMLElement).scrollLeft,
+            y: (target as HTMLElement).scrollTop,
+          });
+        }
+      }),
+      sampling.scroll || 100,
+    ),
+  );
   return on('scroll', updatePosition, doc);
 }
 
@@ -316,21 +320,23 @@ function initViewportResizeObserver({
 }: observerParam): listenerHandler {
   let lastH = -1;
   let lastW = -1;
-  const updateDimension =callbackWrapper(throttle(
-    callbackWrapper(() => {
-      const height = getWindowHeight();
-      const width = getWindowWidth();
-      if (lastH !== height || lastW !== width) {
-        viewportResizeCb({
-          width: Number(width),
-          height: Number(height),
-        });
-        lastH = height;
-        lastW = width;
-      }
-    }),
-    200,
-  ));
+  const updateDimension = callbackWrapper(
+    throttle(
+      callbackWrapper(() => {
+        const height = getWindowHeight();
+        const width = getWindowWidth();
+        if (lastH !== height || lastW !== width) {
+          viewportResizeCb({
+            width: Number(width),
+            height: Number(height),
+          });
+          lastH = height;
+          lastW = width;
+        }
+      }),
+      200,
+    ),
+  );
   return on('resize', updateDimension, window);
 }
 
diff --git a/packages/rrweb/src/types.ts b/packages/rrweb/src/types.ts
index 5143f8a89b..6328b77f5f 100644
--- a/packages/rrweb/src/types.ts
+++ b/packages/rrweb/src/types.ts
@@ -207,4 +207,4 @@ export type CrossOriginIframeMessageEventContent<T = eventWithTime> = {
 };
 export type CrossOriginIframeMessageEvent = MessageEvent<CrossOriginIframeMessageEventContent>;
 
-export type ErrorHandler = (error: unknown) => void | boolean;
\ No newline at end of file
+export type ErrorHandler = (error: unknown) => void | boolean;