laravel 5.3 api has been configured
<code> //category.service.ts private headers = new Headers({'Content-Type': 'application/json','Accept':'application/json','Authorization':'Bearer '+window.localStorage.getItem('token')}); private heroesUrl = 'http://xingao.5188cms.com/api/user'; // URL to web api private handleError(error: any): Promise<any> { console.error('An error occurred', error); // for demo purposes only return Promise.reject(error.message || error); } </code>
Access like this, promptXMLHttpRequest cannot load http://xingao.5188cms.com/api/user. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8100' is therefore not allowed access.
, it seems to be a cross-domain problem, but I can successfully obtain the data using postman
I changed the link to onehttp://xingao.5188cms.com/test.php
<code>//test.php <?php header("Access-Control-Allow-Origin: *"); $arr=['1','2']; echo json_encode($arr); ?></code>
Still not workingXMLHttpRequest cannot load http://xingao.5188cms.com/test.php. Request header field authorization is not allowed by Access-Control-Allow-Headers in preflight response.
I changed the link to /test.json
, but it works
Then what is the reason? . . .
laravel 5.3 api has been configured
<code> //category.service.ts private headers = new Headers({'Content-Type': 'application/json','Accept':'application/json','Authorization':'Bearer '+window.localStorage.getItem('token')}); private heroesUrl = 'http://xingao.5188cms.com/api/user'; // URL to web api private handleError(error: any): Promise<any> { console.error('An error occurred', error); // for demo purposes only return Promise.reject(error.message || error); } </code>
Access like this, promptXMLHttpRequest cannot load http://xingao.5188cms.com/api/user. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8100' is therefore not allowed access.
, it seems to be a cross-domain problem, but I can successfully obtain the data using postman
I changed the link to onehttp://xingao.5188cms.com/test.php
<code>//test.php <?php header("Access-Control-Allow-Origin: *"); $arr=['1','2']; echo json_encode($arr); ?></code>
Still not workingXMLHttpRequest cannot load http://xingao.5188cms.com/test.php. Request header field authorization is not allowed by Access-Control-Allow-Headers in preflight response.
I changed the link to /test.json
, but it works
Then what is the reason? . . .
Access-Control-Allow-Origin
Cross-domain problem
This is a browser limitation