Fix exception when using 'true' as filter

ui/devices-page.ts

@@ -47,8 +47,8 @@ export function init(args): Promise<{}> {
     if (!window.authorizer.hasAccess("devices", 2))
       return void reject(new Error("You are not authorized to view this page"));
 
-    const filter = args.filter;
-    const sort = args.sort;
+    const filter = args.hasOwnProperty("filter") ? "" + args["filter"] : "";
+    const sort = args.hasOwnProperty("sort") ? "" + args["sort"] : "";
     const indexParameters = Object.values(config.ui.index);
     resolve({ filter, indexParameters, sort });
   });

ui/faults-page.ts

@@ -53,8 +53,8 @@ export function init(args): Promise<{}> {
     );
   }
 
-  const sort = args.sort;
-  const filter = args.filter;
+  const sort = args.hasOwnProperty("sort") ? "" + args["sort"] : "";
+  const filter = args.hasOwnProperty("filter") ? "" + args["filter"] : "";
   return new Promise((resolve, reject) => {
     loadYaml()
       .then(() => {

ui/files-page.ts

@@ -125,8 +125,8 @@ export function init(args): Promise<{}> {
     );
   }
 
-  const sort = args.sort;
-  const filter = args.filter;
+  const sort = args.hasOwnProperty("sort") ? "" + args["sort"] : "";
+  const filter = args.hasOwnProperty("filter") ? "" + args["filter"] : "";
   return Promise.resolve({ filter, sort });
 }
 

ui/permissions-page.ts

@@ -151,8 +151,8 @@ export function init(args): Promise<{}> {
       new Error("You are not authorized to view this page")
     );
   }
-  const sort = args.sort;
-  const filter = args.filter;
+  const sort = args.hasOwnProperty("sort") ? "" + args["sort"] : "";
+  const filter = args.hasOwnProperty("filter") ? "" + args["filter"] : "";
   return Promise.resolve({ filter, sort });
 }
 

ui/presets-page.ts

@@ -128,8 +128,8 @@ export function init(args): Promise<{}> {
     );
   }
 
-  const sort = args.sort;
-  const filter = args.filter;
+  const sort = args.hasOwnProperty("sort") ? "" + args["sort"] : "";
+  const filter = args.hasOwnProperty("filter") ? "" + args["filter"] : "";
   return Promise.resolve({ filter, sort });
 }
 

ui/provisions-page.ts

@@ -108,8 +108,8 @@ export function init(args): Promise<{}> {
     );
   }
 
-  const sort = args.sort;
-  const filter = args.filter;
+  const sort = args.hasOwnProperty("sort") ? "" + args["sort"] : "";
+  const filter = args.hasOwnProperty("filter") ? "" + args["filter"] : "";
 
   return new Promise((resolve, reject) => {
     loadCodeMirror()

ui/users-page.ts

@@ -134,8 +134,8 @@ export function init(args): Promise<{}> {
     );
   }
 
-  const sort = args.sort;
-  const filter = args.filter;
+  const sort = args.hasOwnProperty("sort") ? "" + args["sort"] : "";
+  const filter = args.hasOwnProperty("filter") ? "" + args["filter"] : "";
   return Promise.resolve({ filter, sort });
 }
 

ui/virtual-parameters-page.ts

@@ -108,8 +108,8 @@ export function init(args): Promise<{}> {
     );
   }
 
-  const sort = args.sort;
-  const filter = args.filter;
+  const sort = args.hasOwnProperty("sort") ? "" + args["sort"] : "";
+  const filter = args.hasOwnProperty("filter") ? "" + args["filter"] : "";
 
   return new Promise((resolve, reject) => {
     loadCodeMirror()