blob handling, render download link for application/octet-stream

Author: fehguy

src/main/javascript/view/OperationView.js

@@ -672,6 +672,17 @@ SwaggerUi.Views.OperationView = Backbone.View.extend({
         contentType = contentType.split(';')[0].trim();
       }
     }
+    if(contentType) {
+      if(typeof content === 'string') {
+        var arrayBuffer = new ArrayBuffer(content.length);
+        var uint8Array = new Uint8Array(arrayBuffer);
+        for (var i = 0; i < content.length; i++) {
+          uint8Array[i] = content.charCodeAt(i);
+        }
+
+        content = new Blob([uint8Array], { type: contentType });
+      }
+    }
     $('.response_body', $(this.el)).removeClass('json');
     $('.response_body', $(this.el)).removeClass('xml');
 
@@ -687,7 +698,9 @@ SwaggerUi.Views.OperationView = Backbone.View.extend({
       pre = $('<pre class="json" />').append(code);
 
       // JSON
-    } else if (headers['Content-Disposition'] && (/attachment/).test(headers['Content-Disposition']) ||
+    } else if (
+        contentType === 'application/octet-stream' ||
+        headers['Content-Disposition'] && (/attachment/).test(headers['Content-Disposition']) ||
         headers['content-disposition'] && (/attachment/).test(headers['content-disposition']) ||
         headers['Content-Description'] && (/File Transfer/).test(headers['Content-Description']) ||
         headers['content-description'] && (/File Transfer/).test(headers['content-description'])) {