remove duplicate slashes in url (#13409)

npm/ng-packs/packages/core/src/lib/services/rest.service.ts

@@ -38,9 +38,9 @@ export class RestService {
     api = api || this.getApiFromStore(config.apiName);
     const { method, params, ...options } = request;
     const { observe = Rest.Observe.Body, skipHandleError } = config;
-
+    const url = this.removeDuplicateSlashes(api + request.url);
     return this.http
-      .request<R>(method, api + request.url, {
+      .request<R>(method, url, {
         observe,
         ...(params && {
           params: this.getParams(params, config.httpParamEncoder),
@@ -62,4 +62,8 @@ export class RestService {
       ? new HttpParams({ encoder, fromObject: filteredParams })
       : new HttpParams({ fromObject: filteredParams });
   }
+
+  private removeDuplicateSlashes(url: string): string {
+    return url.replace(/([^:]\/)\/+/g, '$1');
+  }
 }

npm/ng-packs/packages/core/src/lib/tests/rest.service.spec.ts

@@ -120,4 +120,17 @@ describe('HttpClient testing', () => {
     const req = spectator.expectOne(api + '/test', HttpMethod.GET);
     spectator.flushAll([req], [throwError('Testing error')]);
   });
+
+  test('should remove the duplicate slashes', () => {
+    spectator.service
+      .request({ method: HttpMethod.GET, url: '//test', params: { id: 1 } })
+      .subscribe();
+    spectator.expectOne(api + '/test?id=1', HttpMethod.GET);
+  });
+  test('should remove the duplicate slashes multiple', () => {
+    spectator.service
+      .request({ method: HttpMethod.GET, url: '//test//my//endpoint', params: { id: 1 } })
+      .subscribe();
+    spectator.expectOne(api + '/test/my/endpoint?id=1', HttpMethod.GET);
+  });
 });