fix: use old tag name for compatibility - http.status_code (#934)

Author: amertak

packages/integration-tests/src/tests/docload/docload.spec.ts

@@ -98,7 +98,7 @@ test.describe('docload', () => {
 		expect(docFetchSpans[0].tags['link.spanId']).toBeDefined()
 		if (browserName !== 'webkit') {
 			// Webkit does not support https://developer.mozilla.org/en-US/docs/Web/API/PerformanceResourceTiming/responseStatus
-			expect(parseInt(docFetchSpans[0].tags['http.response.status_code'] as string)).toBe(200)
+			expect(parseInt(docFetchSpans[0].tags['http.status_code'] as string)).toBe(200)
 		}
 
 		expect(parseInt(scriptFetchSpans[0].tags['http.response_content_length'] as string)).toBeGreaterThan(0)

packages/web/src/SplunkDocumentLoadInstrumentation.ts

@@ -77,7 +77,7 @@ export class SplunkDocumentLoadInstrumentation extends DocumentLoadInstrumentati
 					}
 
 					if (navEntries[0]?.responseStatus) {
-						span.setAttribute('http.response.status_code', navEntries[0].responseStatus)
+						span.setAttribute('http.status_code', navEntries[0].responseStatus)
 					}
 				}