[英]Ionic 4 iOS app request to API throws error unknown, status 0
I have a Ionic 4 with Angular app which connects to my API.我有一个带有 Angular 应用程序的 Ionic 4,它连接到我的 API。 On Android / Browser the calls to the API are working (no errors on the console).
在 Android / 浏览器上,对 API 的调用正在运行(控制台上没有错误)。 However on iOS I sometimes get an error "status":0,"statusText": "Unknown Error"
但是在 iOS 上我有时会收到错误 "status":0,"statusText": "Unknown Error"
ERROR: {
"headers":{"normalizedNames":{},
"lazyUpdate":null,
"headers":{}},
"status":0,
"statusText": "Unknown Error",
"url":"https://api.domain.com/v2/profile",
"ok":false,
"name":"HttpErrorResponse",
"message":"Http failure response for https://api.domain.com/v2/profile: 0 Unknown Error",
"error":{"isTrusted":true}}
the weird thing is, this is not happening all the time.奇怪的是,这并非一直发生。
scenario:设想:
It doesn't matter how many times you navigate, it randomly throws the above error.无论您导航多少次,它都会随机抛出上述错误。 If it had anything to do with CORS I assume it would throw the error everytime you do a request on iOS.
如果它与 CORS 有任何关系,我认为它会在您每次在 iOS 上执行请求时抛出错误。
Ionic info离子信息
Ionic:离子:
Ionic CLI : 5.2.7 (/usr/local/lib/node_modules/ionic)
Ionic Framework : @ionic/angular 4.8.1
@angular-devkit/build-angular : 0.801.3
@angular-devkit/schematics : 8.3.2
@angular/cli : 8.3.2
@ionic/angular-toolkit : 2.0.0
Cordova:
Cordova CLI : 9.0.0 (cordova-lib@9.0.1)
Cordova Platforms : ios 5.0.1
Cordova Plugins : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 4.1.1, (and 10 other plugins)
Utility:
cordova-res : 0.6.0
native-run : 0.2.8
System:
ios-sim : 8.0.2
NodeJS : v10.16.3 (/usr/local/bin/node)
npm : 6.9.0
OS : macOS Mojave
Xcode : Xcode 10.2.1 Build version 10E1001
Safari console screenshot: https://imgur.com/a/BNXAB7Y Safari 控制台截图: https : //imgur.com/a/BNXAB7Y
This answer allows me to find the answer Preflight response is not successful with proper headers这个答案让我可以找到答案Preflight response is not success with正确的标题
The ionic's FAQ helps to understand https://ionicframework.com/docs/faq/cors . ionic 的 FAQ 有助于理解https://ionicframework.com/docs/faq/cors 。
For me, this Apache's configuration works done in virtual host conf:对我来说,这个 Apache 的配置是在虚拟主机 conf 中完成的:
# Always set these headers.
#you can restrict the domain to allow here
SetEnvIf Origin "^(.*)$" AccessControlAllowOrigin=$0
Header always set Access-Control-Allow-Origin %{AccessControlAllowOrigin}e env=AccessControlAllowOrigin
Header always set Access-Control-Allow-Methods "POST, GET, OPTIONS, DELETE, PUT"
Header always set Access-Control-Max-Age "1000"
Header always set Access-Control-Allow-Headers "x-requested-with, Content-Type, origin, authorization, accept, client-security-token"
# Added a rewrite to respond with a 200 SUCCESS on every OPTIONS request.
RewriteEngine On
RewriteCond %{REQUEST_METHOD} OPTIONS
RewriteRule ^(.*)$ $1 [R=200,L]
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.