diff --git a/core/basepage.php b/core/basepage.php
index b8ffffc9..9aa89091 100644
--- a/core/basepage.php
+++ b/core/basepage.php
@@ -557,6 +557,7 @@ class BasePage
         $body_attrs = [
             "data-userclass" => $user->class->name,
             "data-base-href" => get_base_href(),
+            "data-base-link" => make_link(""),
         ];
 
         print emptyHTML(
diff --git a/ext/autocomplete/script.js b/ext/autocomplete/script.js
index 910026dd..289643e0 100644
--- a/ext/autocomplete/script.js
+++ b/ext/autocomplete/script.js
@@ -43,7 +43,7 @@ function updateCompletions(element) {
 	else {
 		element.completer_timeout = setTimeout(() => {
 			const wordWithoutMinus = word.replace(/^-/, '');
-			fetch((document.body.getAttribute("data-base-href") ?? "") + '/api/internal/autocomplete?s=' + wordWithoutMinus).then(
+			fetch(shm_make_link('api/internal/autocomplete', {s: wordWithoutMinus})).then(
 				(response) => response.json()
 			).then((json) => {
 				if(element.selected_completion !== -1) {
diff --git a/ext/notes/script.js b/ext/notes/script.js
index 94aec446..9b4e79bf 100644
--- a/ext/notes/script.js
+++ b/ext/notes/script.js
@@ -150,7 +150,7 @@ function renderEditor(noteDiv, note) {
 	save.innerText = 'Save';
 	save.addEventListener('click', () => {
 		if(note.note_id == null) {
-			fetch('/note/create_note', {
+			fetch(shm_make_link('note/create_note'), {
 				method: 'POST',
 				headers: {
 					'Content-Type': 'application/json'
@@ -169,7 +169,7 @@ function renderEditor(noteDiv, note) {
 				alert(error);
 			});
 		} else {
-			fetch('/note/update_note', {
+			fetch(shm_make_link('note/update_note'), {
 				method: 'POST',
 				headers: {
 					'Content-Type': 'application/json'
@@ -205,7 +205,7 @@ function renderEditor(noteDiv, note) {
 		deleteNote.innerText = 'Delete';
 		deleteNote.addEventListener('click', () => {
 			// TODO: delete note from server
-			fetch('/note/delete_note', {
+			fetch(shm_make_link('note/delete_note'), {
 				method: 'POST',
 				headers: {
 					'Content-Type': 'application/json'
diff --git a/ext/static_files/init.js b/ext/static_files/init.js
index fe6cabf2..0a93530c 100644
--- a/ext/static_files/init.js
+++ b/ext/static_files/init.js
@@ -4,6 +4,13 @@ function shm_cookie_set(name, value) {
 function shm_cookie_get(name) {
 	return Cookies.get(name);
 }
+function shm_make_link(page, query) {
+    let base = (document.body.getAttribute("data-base-link") ?? "");
+    let joiner = base.indexOf("?") === -1 ? "?" : "&";
+    let url = base + page;
+    if(query) url += joiner + new URLSearchParams(query).toString();
+    return url;
+}
 
 function shm_log(section, ...message) {
     window.dispatchEvent(new CustomEvent("shm_log", {detail: {section, message}}));