fixing error handler interceptor (#12761)

modules/openapi-generator/src/main/resources/typescript-fetch/runtime.mustache

@@ -181,7 +181,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }

samples/client/petstore/typescript-fetch/builds/default-v3.0/runtime.ts

@@ -192,7 +192,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }

samples/client/petstore/typescript-fetch/builds/default/runtime.ts

@@ -192,7 +192,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }

samples/client/petstore/typescript-fetch/builds/enum/runtime.ts

@@ -192,7 +192,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }

samples/client/petstore/typescript-fetch/builds/es6-target/src/runtime.ts

@@ -192,7 +192,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }

samples/client/petstore/typescript-fetch/builds/multiple-parameters/runtime.ts

@@ -192,7 +192,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }

samples/client/petstore/typescript-fetch/builds/prefix-parameter-interfaces/src/runtime.ts

@@ -192,7 +192,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }

samples/client/petstore/typescript-fetch/builds/sagas-and-records/src/runtime.ts

@@ -192,7 +192,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }

samples/client/petstore/typescript-fetch/builds/with-interfaces/runtime.ts

@@ -192,7 +192,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }

samples/client/petstore/typescript-fetch/builds/with-npm-version/src/runtime.ts

@@ -192,7 +192,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }

samples/client/petstore/typescript-fetch/builds/with-string-enums/runtime.ts

@@ -192,7 +192,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }

samples/client/petstore/typescript-fetch/builds/without-runtime-checks/src/runtime.ts

@@ -192,7 +192,7 @@ export class BaseAPI {
                     }) || response;
                 }
             }
-            if (response !== undefined) {
+            if (response === undefined) {
                 throw new FetchError(e, 'The request failed and the interceptors did not return an alternative response');
             }
         }