如何解决无法在最近的Chrome更新中解析Access-Contro-Allow-Header
代码:
private static final String OUTPUT_HEADERS = "HTTP/1.1 200 OK\r\n" +
"Content-Type: application/json;charset=utf-8 \r\n" + "Content-Length: ";
private static final String ALLOW_ORIGIN = "Access-Control-Allow-Origin: * \r\n";
private static final String ALLOW_ORIGIN_CREDENTIALS = "Access-Control-Allow-Credentials: true \r\n";
private static final String ALLOW_ORIGIN_METHODS = "Access-Control-Allow-Methods: GET,HEAD,OPTIONS,POST,PUT \r\n";
private static final String ALLOW_ORIGIN_HEADER = "Access-Control-Allow-Headers:access-control-allow-origin,Access-Control-Allow-Headers,Origin,Accept,X-Requested-With,Content-Type,Access-Control-Request-Method,Access-Control-Request-Headers";
private static final String OUTPUT_END_OF_HEADERS = "\r\n\r\n";
BufferedReader reader = new BufferedReader(isr);
String line = reader.readLine();
while (line != null && !line.isEmpty()) {
if (line.contains("OPTIONS")) {[enter image description here][1]
params = 0;
var pw = new PrintWriter(clientSocket.getOutputStream(),true);
pw.write(OUTPUT_HEADERS + "0" + "\r\n" + ALLOW_ORIGIN + ALLOW_ORIGIN_HEADER
+ ALLOW_ORIGIN_CREDENTIALS + ALLOW_ORIGIN_METHODS +
OUTPUT_END_OF_HEADERS);
pw.close();
reader.close();
clientSocket.close();
}
if (line.contains("GET") && line.contains("/electronic")) {
//do sth....
}
您好,最近我的chrome浏览器更新到了版本85,我的程序开始出现CORS问题。
从orgin访问“ https:// site1 / electronic”处的XMLHttpRequest https:// site02'已被CORS政策封锁:无法解析 预检中的Access-Control-Allow-Headers响应标头字段 响应。
我不知道chrome在检查CORS时是否更改了任何内容,或者我的代码很久以前就存在任何问题,但是开始出现?我试图更改某些Access-Control-Allow-Header,但仍然无法正常工作。有关解决此问题的任何建议?非常感谢!
Attached the screen of the headers
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