diff --git a/js/animations/timeline.js b/js/animations/timeline.js
index 1e739eab..0d951c6b 100644
--- a/js/animations/timeline.js
+++ b/js/animations/timeline.js
@@ -810,8 +810,8 @@ onVueSetup(function() {
 							var round_num = canvasGridSize(e2.shiftKey, e2.ctrlOrCmd)
 						}
 						value = Math.round(value/round_num)*round_num
-						previousValue = previousValue ?? value;
-						originalValue = originalValue ?? value;
+						previousValue = previousValue == undefined ? value : previousValue;
+						originalValue = originalValue == undefined ? value : originalValue;
 
 						if (value !== previousValue) {
 							value_diff = value - (previousValue||0);
diff --git a/js/blockbench.js b/js/blockbench.js
index 19ef39f4..eca7d84b 100644
--- a/js/blockbench.js
+++ b/js/blockbench.js
@@ -33,8 +33,6 @@ var Prop = {
 const mouse_pos = {x:0,y:0}
 const sort_collator = new Intl.Collator(undefined, {numeric: true, sensitivity: 'base'});
 
-$.ajaxSetup({ cache: false });
-
 function onVueSetup(func) {
 	if (!onVueSetup.funcs) {
 		onVueSetup.funcs = []
diff --git a/js/boot_loader.js b/js/boot_loader.js
index 24a871e7..ba8a1b7b 100644
--- a/js/boot_loader.js
+++ b/js/boot_loader.js
@@ -58,7 +58,6 @@ if (isApp) {
 	updateRecentProjects()
 }
 
-
 if (!isApp) {
 	async function registerSW() {
 		if ('serviceWorker' in navigator) {
@@ -72,6 +71,10 @@ if (!isApp) {
 	registerSW();
 }
 
+if (!Blockbench.isWeb || !Blockbench.isPWA) {
+	$.ajaxSetup({ cache: false });
+}
+
 Blockbench.on('before_closing', (event) => {
 	if (!Blockbench.hasFlag('no_localstorage_saving')) {
 		Settings.saveLocalStorages()
diff --git a/manifest.webmanifest b/manifest.webmanifest
index 0c0f7545..eccc9c08 100644
--- a/manifest.webmanifest
+++ b/manifest.webmanifest
@@ -25,5 +25,5 @@
 	"theme_color": "#3e90ff",
 	"display": "standalone",
 	"display_override": ["tabbed", "minimal-ui"],
-	"orientation": "portrait"
+	"orientation": "portrait-primary"
 }
\ No newline at end of file