Ensure that savers invoke the callback

core/modules/savers/download.js

@@ -38,6 +38,8 @@ DownloadSaver.prototype.save = function(text,method,callback) {
 	document.body.appendChild(link);
 	link.click();
 	document.body.removeChild(link);
+	// Callback that we succeeded
+	callback(null);
 	return true;
 };
 

core/modules/savers/fsosaver.js

@@ -33,14 +33,16 @@ FSOSaver.prototype.save = function(text,method,callback) {
 		pathname = pathname.substr(1);
 		// reconstruct UNC path
 		pathname = "\\\\" + document.location.hostname + pathname;
-	} else return false;
-	
+	} else {
+		return false;
+	}
 	// Save the file (as UTF-16)
 	var fso = new ActiveXObject("Scripting.FileSystemObject");
 	var file = fso.OpenTextFile(pathname,2,-1,-1);
-	
 	file.Write(text);
 	file.Close();
+	// Callback that we succeeded
+	callback(null);
 	return true;
 };
 

core/modules/savers/manualdownload.js

@@ -25,6 +25,8 @@ ManualDownloadSaver.prototype.save = function(text,method,callback) {
 	$tw.modal.display(downloadInstructionsTitle,{
 		downloadLink: "data:text/html," + encodeURIComponent(text)
 	});
+	// Callback that we succeeded
+	callback(null);
 	return true;
 };
 

core/modules/savers/msdownload.js

@@ -28,6 +28,8 @@ MsDownloadSaver.prototype.save = function(text,method,callback) {
 	// Set up the link
 	var blob = new Blob([text], {type: "text/html"});
 	window.navigator.msSaveBlob(blob,filename);
+	// Callback that we succeeded
+	callback(null);
 	return true;
 };
 

core/modules/savers/tiddlyie.js

@@ -35,9 +35,10 @@ TiddlyIESaver.prototype.save = function(text,method,callback) {
 			// reconstruct UNC path
 			pathname = "\\\\" + document.location.hostname + pathname;
 		} else return false;
-		
 		// Prompt the user to save the file
 		window.TiddlyIE.save(pathname, text);
+		// Callback that we succeeded
+		callback(null);
 		return true;
 	} else {
 		return false;