fix: track control impressions on targeted pages (#181)

Author: tyiuhc

packages/experiment-tag/src/experiment.ts

@@ -358,7 +358,9 @@ export class DefaultWebExperimentClient implements WebExperimentClient {
         const isControlOrOffPayload =
           !variant.payload || (payloadIsArray && variant.payload.length === 0);
         if (shouldTrackExposure && isControlOrOffPayload) {
-          this.exposureWithDedupe(key, variant);
+          if (this.isActionActiveOnPage(key, undefined)) {
+            this.exposureWithDedupe(key, variant);
+          }
           // revert all applied mutations and injections
           this.revertVariants({ flagKeys: [key] });
           continue;

packages/experiment-tag/test/experiment.test.ts

@@ -189,7 +189,7 @@ describe('initializeExperiment', () => {
       JSON.stringify([
         createRedirectFlag('test', 'control', 'http://test.com/2'),
       ]),
-      JSON.stringify({}),
+      JSON.stringify(DEFAULT_PAGE_OBJECTS),
     ).start();
     expect(mockGlobal.location.replace).toBeCalledTimes(0);
     expect(mockExposure).toHaveBeenCalledWith('test');