Changed getFile api call to always attach headers

webapp/components/file_attachment.jsx

@@ -130,7 +130,7 @@ class FileAttachment extends React.Component {
         var filename = this.props.filename;
 
         var fileInfo = utils.splitFileLocation(filename);
-        var fileUrl = utils.getFileUrl(filename, true);
+        var fileUrl = utils.getFileUrl(filename);
         var type = utils.getFileType(fileInfo.ext);
 
         var thumbnail;

webapp/components/view_image.jsx

@@ -228,7 +228,7 @@ class ViewImageModal extends React.Component {
         }
 
         const filename = this.props.filenames[this.state.imgId];
-        const fileUrl = Utils.getFileUrl(filename, true);
+        const fileUrl = Utils.getFileUrl(filename);
 
         var content;
         if (this.state.loaded[this.state.imgId]) {

webapp/utils/utils.jsx

@@ -1110,9 +1110,8 @@ export function fileSizeToString(bytes) {
 }
 
 // Converts a filename (like those attached to Post objects) to a url that can be used to retrieve attachments from the server.
-export function getFileUrl(filename, isDownload) {
-    const downloadParam = isDownload ? '?download=1' : '';
-    return getWindowLocationOrigin() + '/api/v1/files/get' + filename + downloadParam;
+export function getFileUrl(filename) {
+    return getWindowLocationOrigin() + '/api/v1/files/get' + filename;
 }
 
 // Gets the name of a file (including extension) from a given url or file path.