fix(xhr): check for resource timing support (#1720)

open-telemetry · Dec 9, 2020 · e941f55 · e941f55
1 parent 91612c4
commit e941f55
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/packages/opentelemetry-instrumentation-xml-http-request/src/xhr.ts b/packages/opentelemetry-instrumentation-xml-http-request/src/xhr.ts
@@ -168,7 +168,11 @@ export class XMLHttpRequestInstrumentation extends InstrumentationBase<XMLHttpRe
    */
   private _addResourceObserver(xhr: XMLHttpRequest, spanUrl: string) {
     const xhrMem = this._xhrMem.get(xhr);
-    if (!xhrMem || typeof window.PerformanceObserver === 'undefined') {
+    if (
+      !xhrMem ||
+      typeof window.PerformanceObserver === 'undefined' ||
+      typeof window.PerformanceResourceTiming === 'undefined'
+    ) {
       return;
     }
     xhrMem.createdResources = {