From 781bdf8c749e2cde62a1b436c5745af61a4a7dad Mon Sep 17 00:00:00 2001
From: Juliusz Chroboczek <jch@irif.fr>
Date: Mon, 17 May 2021 14:43:57 +0200
Subject: [PATCH] Fix error handling in mainpage and stats.

---
 static/mainpage.js | 11 ++++++++---
 static/stats.js    |  8 ++++++--
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/static/mainpage.js b/static/mainpage.js
index 1f80c40..42f75dc 100644
--- a/static/mainpage.js
+++ b/static/mainpage.js
@@ -33,10 +33,15 @@ async function listPublicGroups() {
 
     let l;
     try {
-        l = await (await fetch('/public-groups.json')).json();
+        let r = await fetch('/public-groups.json');
+        if(!r.ok)
+            throw new Error(`${r.status} ${r.statusText}`);
+        l = await r.json();
     } catch(e) {
-        console.error(e);
-        l = [];
+        table.textContent = `Couldn't fetch groups: ${e}`;
+        div.classList.remove('nogroups');
+        div.classList.add('groups');
+        return;
     }
 
     if (l.length === 0) {
diff --git a/static/stats.js b/static/stats.js
index bb67547..3746d96 100644
--- a/static/stats.js
+++ b/static/stats.js
@@ -25,10 +25,14 @@ async function listStats() {
 
     let l;
     try {
-        l = await (await fetch('/stats.json')).json();
+        let r = await fetch('/stats.json');
+        if(!r.ok)
+            throw new Error(`${r.status} ${r.statusText}`);
+        l = await r.json();
     } catch(e) {
         console.error(e);
-        l = [];
+        table.textContent = `Couldn't fetch stats: ${e}`;
+        return;
     }
 
     if(l.length === 0) {