fix(core): Add dsn to span envelope header

packages/core/src/envelope.ts

@@ -110,9 +110,13 @@ export function createSpanEnvelope(spans: SentrySpan[], client?: Client): SpanEn
  // different segments in one envelope
  const dsc = getDynamicSamplingContextFromSpan(spans[0]);
 
+ const dsn = client && client.getDsn();
+ const tunnel = client && client.getOptions().tunnel;
+
  const headers: SpanEnvelope[0] = {
  sent_at: new Date().toISOString(),
  ...(dscHasRequiredProps(dsc) && { trace: dsc }),
+ ...(!!tunnel && dsn && { dsn: dsnToString(dsn) }),
  };
 
  const beforeSendSpan = client && client.getOptions().beforeSendSpan;

packages/core/test/lib/envelope.test.ts

@@ -144,6 +144,32 @@ describe('createSpanEnvelope', () => {
  });
  });
 
+ it('adds `dsn` envelope header if tunnel is enabled', () => {
+ const options = getDefaultTestClientOptions({ dsn: 'https://username@domain/123', tunnel: 'http://tunnel' });
+ const client = new TestClient(options);
+
+ const spanEnvelope = createSpanEnvelope(
+ [new SentrySpan({ name: 'test', attributes: { [SEMANTIC_ATTRIBUTE_SENTRY_SOURCE]: 'custom' } })],
+ client,
+ );
+
+ const spanEnvelopeHeaders = spanEnvelope[0];
+ expect(spanEnvelopeHeaders.dsn).toEqual('https://username@domain/123');
+ });
+
+ it('does not add `dsn` envelope header if tunnel is not enabled', () => {
+ const options = getDefaultTestClientOptions({ dsn: 'https://username@domain/123' });
+ const client = new TestClient(options);
+
+ const spanEnvelope = createSpanEnvelope(
+ [new SentrySpan({ name: 'test', attributes: { [SEMANTIC_ATTRIBUTE_SENTRY_SOURCE]: 'custom' } })],
+ client,
+ );
+
+ const spanEnvelopeHeaders = spanEnvelope[0];
+ expect(spanEnvelopeHeaders.dsn).toBeUndefined();
+ });
+
  it("doesn't add a `trace` envelope header if there's no public key", () => {
  const options = getDefaultTestClientOptions({ tracesSampleRate: 1, dsn: 'https://domain/123' });
  client = new TestClient(options);