diff --git a/src/renderer/util.ts b/src/renderer/util.ts
index 4fedbd5..5ea0c88 100644
--- a/src/renderer/util.ts
+++ b/src/renderer/util.ts
@@ -48,6 +48,9 @@ export class Listenable<T extends any[]> {
 
 export async function getJSON(url: string): Promise<any> {
 	const res = await window.fetch(url);
+	if (res.status < 200 || res.status >= 300)
+		throw new Error(res.statusText);
+
 	return await res.json();
 }