当前行为
目前我在具有151.101.1.195的 Firebase 主机上托管Angular ，而我的 API 位于 IP为 23.98.64.158的 azure 服务器上
然后我在我的角度 v6.1.7 中使用以下行发送 POST 请求
const req = new HttpRequest('POST', `${environment.ApiHost}api/do/something`, token, { headers: this.authenticationService.getAccessTokenHeader(), responseType: "text" });
return this.httpClient.request<any>(req);
它假设在23.98.64.158向我的 Azure API 服务器发出一个 OPTIONS 请求，然后仅 POST，但不知何故它会先 POST、OPTION 然后 POST。查看 chrome devtool 网络选项卡，显示我的请求针对第一个 POST（不应该）发送到 firebase ip 151.101.1.195 ，但随后的 OPTION 和 POST 请求解析为更正 azure IP 23.98.64.158
这是我抓取的 devtool 标题一般信息，表明它已发布到错误Remote Address 的 151.101.1.195
Request URL: https://someazuresite.azurewebsites.net/api/do/something
Request Method: POST
Status Code: 504 Gateway Timeout (from ServiceWorker)
Remote Address: 151.101.1.195:443
Referrer Policy: no-referrer-when-downgrade
FROM INITIATOR:-
m | @ | zone.js.pre-build-optimizer.js:2969
-- | -- | --
| t.scheduleTask | @ | zone.js.pre-build-optimizer.js:407
| onScheduleTask | @ | zone.js.pre-build-optimizer.js:297
| t.scheduleTask | @ | zone.js.pre-build-optimizer.js:401
| e.scheduleTask | @ | zone.js.pre-build-optimizer.js:232
| e.scheduleMacroTask | @ | zone.js.pre-build-optimizer.js:255
| p | @ | zone.js.pre-build-optimizer.js:1114
| (anonymous) | @ | zone.js.pre-build-optimizer.js:3001
| N.o.(anonymous function) | @ | zone.js.pre-build-optimizer.js:1394
| (anonymous) | @ | http.js.pre-build-optimizer.js:1639
| e._trySubscribe | @ | Observable.js.pre-build-optimizer.js:42
| e.subscribe | @ | Observable.js.pre-build-optimizer.js:28
| e.call | @ | catchError.js.pre-build-optimizer.js:18
| e.subscribe | @ | Observable.js.pre-build-optimizer.js:23
| (anonymous) | @ | subscribeTo.js.pre-build-optimizer.js:21
| i | @ | subscribeToResult.js.pre-build-optimizer.js:11
| t._innerSub | @ | mergeMap.js.pre-build-optimizer.js:73
| t._tryNext | @ | mergeMap.js.pre-build-optimizer.js:68
| t._next | @ | mergeMap.js.pre-build-optimizer.js:51
| t.next | @ | Subscriber.js.pre-build-optimizer.js:55
| (anonymous) | @ | scalar.js.pre-build-optimizer.js:5
| e._trySubscribe | @ | Observable.js.pre-build-optimizer.js:42
| e.subscribe | @ | Observable.js.pre-build-optimizer.js:28
| e.call | @ | mergeMap.js.pre-build-optimizer.js:29
| e.subscribe | @ | Observable.js.pre-build-optimizer.js:23
| (anonymous) | @ | kg-fcm-setup.component.ts:64
然后后续请求指向正确的 Azure IP
Request URL: https://someazuresite.azurewebsites.net/api/do/something
Request Method: OPTIONS
Status Code: 200 OK
Remote Address: 23.98.64.158:443
Referrer Policy: no-referrer-when-downgrade
Request URL: https://someazuresite.azurewebsites.net/api/do/something
Request Method: POST
Status Code: 500 Internal Server Error
Remote Address: 23.98.64.158:443
Referrer Policy: no-referrer-when-downgrade
预期行为
我应该只看到调用 OPTION 和 POST 到 https://someazuresite.azurewebsites.net/api/do/something并解析为 AZURE IP only Remote Address: 23.98.64.158:443 为什么 zone.js 开始 POST 到错误的 firebase IP ?
使用说明最小化重现问题
改变行为的动机/用例是什么？
环境
Angular CLI: 6.1.5
Node: 8.12.0
OS: win32 x64
Angular: 6.1.7
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router, service-worker
Package Version
------------------------------------------------------------
@angular-devkit/architect 0.7.1
@angular-devkit/build-angular 0.7.1
@angular-devkit/build-ng-packagr 0.7.5
@angular-devkit/build-optimizer 0.7.1
@angular-devkit/build-webpack 0.7.1
@angular-devkit/core 0.7.5
@angular-devkit/schematics 0.7.5
@angular/cli 6.1.5
@angular/pwa 0.7.5
@ngtools/json-schema 1.1.0
@ngtools/webpack 6.1.1
@schematics/angular 0.7.5
@schematics/update 0.7.5
ng-packagr 3.0.6
rxjs 6.3.2
typescript 2.9.2
webpack 4.9.2
<pre><code>
Angular version: X.Y.Z
<!-- Check whether this is still an issue in the most recent Angular version -->
Browser:
- [x] Chrome (desktop) version XX
- [ ] Chrome (Android) version XX
- [ ] Chrome (iOS) version XX
- [ ] Firefox version XX
- [ ] Safari (desktop) version XX
- [ ] Safari (iOS) version XX
- [ ] IE version XX
- [ ] Edge version XX
```
For Tooling issues:
- Node version: v8.12.0
- Platform: windows 10 Version 10.0.17134 Build 17134