我有一个带有Angular的Ionic 4应用程序,可以连接到我的API。 在Android /浏览器上,对API的调用正在运行(控制台上没有错误)。但是,在iOS上,有时会出现错误“ status”:0,“ statusText”: “未知错误”
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}}
奇怪的是,这并没有一直发生。
场景:
导航多少次无关紧要,它会随机引发上述错误。如果与CORS有任何关系,我认为每次您在iOS上进行请求时,它都会引发错误。
离子信息
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控制台屏幕截图:https://imgur.com/a/BNXAB7Y
答案 0 :(得分:0)
此答案使我可以找到答案Preflight response is not successful with proper headers
离子的常见问题解答有助于理解https://ionicframework.com/docs/faq/cors。
对我来说,此Apache的配置在虚拟主机conf中完成:
# 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]