diff --git a/homepage/static/assets/js/captcha_refresh.js b/homepage/static/assets/js/captcha_refresh.js
index 54b0822..4f7cc6c 100644
--- a/homepage/static/assets/js/captcha_refresh.js
+++ b/homepage/static/assets/js/captcha_refresh.js
@@ -10,10 +10,10 @@ function getColorScheme() {
 }
 
 async function getNewCaptcha() {
-	const id = await fetch("/captcha/").then(r => r.text());
+	const id = await fetch("/api/captcha/", { method: "POST"}).then(r => r.text());
 	g_current_captcha_id = id;
 	captcha_hidden_field.value = id;
-	setTimeout(() => { captcha_img.src = `/captcha/${id}/image?style=${getColorScheme()}` }, 600);
+	setTimeout(() => { captcha_img.src = `/api/captcha/${id}/image?style=${getColorScheme()}` }, 600);
 	g_captcha_timeout_remain = g_captcha_timeout_seconds;
 }
 
@@ -33,13 +33,13 @@ captcha_refresh.addEventListener("click", async e => {
 	captcha_refresh.disabled = true;
 	setTimeout(async () => {
 		captcha_refresh.disabled = false;
-		await fetch(`/captcha/${g_current_captcha_id}?remove`); }, 3000);
+		await fetch(`/api/captcha/${g_current_captcha_id}?remove`); }, 3000);
 	document.getElementsByName("captcha_answer")[0].value = "";
 	await getNewCaptcha();
 });
 
 // Remove unused CAPTCHA on a server.
-window.addEventListener("unload", () => fetch(`/captcha/${g_current_captcha_id}?remove`));
+window.addEventListener("unload", () => fetch(`/api/captcha/${g_current_captcha_id}?remove`));
 
 setInterval(async () => {
 	captcha_remain.innerText = --g_captcha_timeout_remain;