I'm using kendo ui file upload widget, with async configuration. It's working ok on all browser except of Safari. In Safari the upload sends a request to my upload handler, but the request body is empty or just contains file's name. How to configure it to work? Maybe i could switch to iframe-based implementation that performs normal upload in the bacgkground, but how to achieve that with current version of Kendo UI?
HAR:
{"pageref":"http://localhost:3805/Details/Show/0?entity=EndCustomerServiceRequest","startedDateTime":"2016-12-15T15:48:56.644Z","time":20,"request":{"method":"POST","url":"http://localhost:3805/FaAttachments/Upload","headers":[{"name":"Origin","value":"http://localhost:3805"},{"name":"User-Agent","value":"Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/534.57.2 (KHTML, like Gecko) Version/5.1.7 Safari/534.57.2"},{"name":"Content-Type","value":"multipart/form-data; boundary=----WebKitFormBoundaryWVyNKFW88DuUTqSL"},{"name":"Accept","value":"/; q=0.5, application/json"},{"name":"Referer","value":"http://localhost:3805/Details/Show/0?entity=EndCustomerServiceRequest"}],"queryString":[],"cookies":[],"headersSize":-1,"bodySize":-1,"postData":{"mimeType":"multipart/form-data; boundary=----WebKitFormBoundaryWVyNKFW88DuUTqSL","text":"------WebKitFormBoundaryWVyNKFW88DuUTqSL--\r\n"}},"response":{"status":200,"statusText":"OK","headers":[{"name":"Date","value":"Thu, 15 Dec 2016 15:48:56 GMT"},{"name":"X-AspNet-Version","value":"4.0.30319"},{"name":"X-Powered-By","value":"ASP.NET"},{"name":"Content-Length","value":"2"},{"name":"X-AspNetMvc-Version","value":"5.2"},{"name":"Server","value":"Microsoft-IIS/10.0"},{"name":"Content-Type","value":"application/json; charset=utf-8"},{"name":"Cache-Control","value":"private"},{"name":"X-SourceFiles","value":"=?UTF-8?B?QzpcZGV2c1xDb25maWd1cmF0b3JcV2ViQ29uZmlndXJhdG9yXEZhQXR0YWNobWVudHNcVXBsb2Fk?="}],"cookies":[],"content":{"size":2,"mimeType":"application/json"},"redirectURL":"","headersSize":-1,"bodySize":2},"cache":{},"timings":{"blocked":0,"dns":-1,"connect":-1,"send":-1,"wait":-1,"receive":4,"ssl":-1}}
