preflight

问题 I am using angular client to call a rest api in wso2 which is exposed from a data service not directly built as an api and also tried many solutions provided in stack overflow and also wso2 documentation , nothing helps. 回答1: With regard to OPTIONS requests in the preflight, the WSO2 Enterprise Integrator (EI) behaves as follows depending on the implementation of the API. If we have defined OPTIONS as a resource method, then EI sends the request to the backend service to collect the

问题 Greetings I have one web application with following architecture: Web api: ASP.net core 2.1 (Windows Authentication) UI: angular 8 UI is able to get data but unable to send data. I mean GET method is working fine but POST, PUT, DELETE options are not working . And all the methods are working using POSTMAN. ERROR is: Access to XMLHttpRequest at 'http://xx.xxx.xxx.xx:xxyy/xxx/xxxxxx/Method' from origin 'http://localhost:xxxx' has been blocked by CORS policy: Response to preflight request doesn

来源： https://stackoverflow.com/questions/59377820/how-to-heal-inconsistent-parent-tree-mappings-in-a-pdf-created-by-pdfbox

来源： https://stackoverflow.com/questions/55737748/preflight-request-failing-on-calling-a-post-request-with-keepalive-using-fetch-a

来源： https://stackoverflow.com/questions/55737748/preflight-request-failing-on-calling-a-post-request-with-keepalive-using-fetch-a

来源： https://stackoverflow.com/questions/55737748/preflight-request-failing-on-calling-a-post-request-with-keepalive-using-fetch-a

来源： https://stackoverflow.com/questions/42848208/cors-preflight-response-includes-varyorigin-and-access-control-max-age

来源： https://stackoverflow.com/questions/42848208/cors-preflight-response-includes-varyorigin-and-access-control-max-age

问题 Given two sub domains: web.mysite.com and api.mysite.com Currently making any request from web. to api. results in the preflight OPTIONS request being made. This wouldn't be so much of an issue if it didn't add an extra 600ms to requests in China. I was told that setting document.domain = 'mysite.com'; in JS would resolve the issue but this hasn't helped at all. Is it possible / how can I disable the OPTIONS request when sending to just a different sub domain. 回答1: Solved this using the

问题 I'm using SAM to create my API in cloudformation. I'm getting a 403 FORBIDDEN on my options method (thus also my preflight for my get method). How can I allow my options method to reply with 200 OK without my x-api-key? I've tried so many stackoverflow answers but none fit my SAM template format. I've tried all the different combinations of my AllowHeaders. I've ommited the x-api-key - still the same 403 FORBIDDEN. If I send my x-api-key in postman with my request I get a 200 OK, but in my