Angular produces this error when you attempt a JSONP request without providing the necessary support for it in the HttpClient configuration.
To enable JSONP support, you can do one of the following:
- add the
withJsonpSupport()as an argument during theprovideHttpClientfunction call (e.g.provideHttpClient(withJsonpSupport())) whenbootstrapApplicationis used - import the
HttpClientJsonpModulein your root AppModule, when NgModule-based bootstrap is used.## Debugging the error Make sure that the JSONP support is added into your application either by calling thewithJsonpSupportfunction (whenprovideHttpClientis used) or importing theHttpClientJsonpModulemodule as described above.