问在路由器外部访问时Spring React Chrome CORS错误

EN

Access to XMLHttpRequest at 'http://localhost:8080/api/v1/users' from origin 'http://TESTURL.ddns.net:3000' has been blocked by CORS policy: The request client is not a secure context and the resource is in more-private address space `local`.
xhr.js:187 GET http://localhost:8080/api/v1/users net::ERR_FAILED
dispatchXhrRequest @ xhr.js:187
xhrAdapter @ xhr.js:13
dispatchRequest @ dispatchRequest.js:53
request @ Axios.js:108
Axios.<computed> @ Axios.js:129
wrap @ bind.js:9
getUsers @ UserService.js:8
componentDidMount @ LoginComponent.jsx:19
commitLifeCycles @ react-dom.development.js:19816
commitLayoutEffects @ react-dom.development.js:22805
callCallback @ react-dom.development.js:188
invokeGuardedCallbackDev @ react-dom.development.js:237
invokeGuardedCallback @ react-dom.development.js:292
commitRootImpl @ react-dom.development.js:22543
unstable_runWithPriority @ scheduler.development.js:653
runWithPriority$1 @ react-dom.development.js:11039
commitRoot @ react-dom.development.js:22383
finishSyncRender @ react-dom.development.js:21809
performSyncWorkOnRoot @ react-dom.development.js:21795
scheduleUpdateOnFiber @ react-dom.development.js:21190
updateContainer @ react-dom.development.js:24375
(anonymous) @ react-dom.development.js:24760
unbatchedUpdates @ react-dom.development.js:21905
legacyRenderSubtreeIntoContainer @ react-dom.development.js:24759
render @ react-dom.development.js:24842
(anonymous) @ index.js:8
./src/index.js @ index.js:19
__webpack_require__ @ bootstrap:856
fn @ bootstrap:150
1 @ reportWebVitals.js:14
__webpack_require__ @ bootstrap:856
checkDeferredModules @ bootstrap:45
webpackJsonpCallback @ bootstrap:32
(anonymous) @ main.chunk.js:1
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createError.js:16 Uncaught (in promise) Error: Network Error
    at createError (createError.js:16)
    at XMLHttpRequest.handleError (xhr.js:99)