fix missing \r\n after Content-Disposition in iOS (#6722)

Co-authored-by: Yasin.Simsek <>
Co-authored-by: Chace Daniels <chaced12@gmail.com>

ios/Capacitor/Capacitor/Plugins/CapacitorUrlRequest.swift

@@ -132,6 +132,7 @@ open class CapacitorUrlRequest: NSObject, URLSessionTaskDelegate {
             } else if type == "string" {
                 data.append("\r\n--\(boundary)\r\n".data(using: .utf8)!)
                 data.append("Content-Disposition: form-data; name=\"\(key!)\"\r\n".data(using: .utf8)!)
+                data.append("\r\n".data(using: .utf8)!)
                 data.append(value.data(using: .utf8)!)
                 data.append("\r\n".data(using: .utf8)!)
             }