When Content-type is set to application/json in IE9, IE10, and IE11, the download dialog box appears when you open the interface.

: When the Content-type in IE9, IE10, and IE11 is applicationjson, the download dialog box appears when you open the interface. Solution: set the Content-type in the header to textjson; for example, PHP: header (Content-type: textjson; charsetutf-8); solution: set the Content-type in the header to text/json;

For example, PHP: header ("Content-type: text/json; charset = utf-8 ");

When the Content-type in IE9, IE10, and IE11 is set to application/json, a download dialog box appears when you open the interface, including the Content, if you are interested in PHP tutorials.