ok just use textencoder directly

Author: billyvg

packages/replay/src/util/createReplayEnvelope.ts

@@ -1,5 +1,5 @@
 import type { DsnComponents, ReplayEnvelope, ReplayEvent, ReplayRecordingData } from '@sentry/types';
-import { createEnvelope, createEventEnvelopeHeaders, encodeUTF8, getSdkMetadataForEnvelopeHeader } from '@sentry/utils';
+import { createEnvelope, createEventEnvelopeHeaders, getSdkMetadataForEnvelopeHeader } from '@sentry/utils';
 
 /**
  * Create a replay envelope ready to be sent.
@@ -21,7 +21,7 @@ export function createReplayEnvelope(
           // If string then we need to encode to UTF8, otherwise will have
           // wrong size. TextEncoder has similar browser support to
           // MutationObserver, although it does not accept IE11.
-          length: typeof recordingData === 'string' ? encodeUTF8(recordingData).length : recordingData.length,
+          length: typeof recordingData === 'string' ? new TextEncoder().encode(recordingData).length : recordingData.length,
         },
         recordingData,
       ],