dropUndefinedKeys

Author: Lms24

packages/core/src/tracing/span.ts

@@ -133,11 +133,11 @@ export class Span implements SpanInterface {
     // eslint-disable-next-line deprecation/deprecation
     this.instrumenter = spanContext.instrumenter || 'sentry';
 
-    this._attributes = {
+    this._attributes = dropUndefinedKeys({
       [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: spanContext.origin || 'manual',
       [SEMANTIC_ATTRIBUTE_SENTRY_OP]: spanContext.op,
       ...spanContext.attributes,
-    };
+    });
 
     // eslint-disable-next-line deprecation/deprecation
     this._name = spanContext.name || spanContext.description;