From ee2e82b8405541b4a711050117bd58bfc82e2db5 Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Tue, 27 May 2025 22:46:00 +0200
Subject: JS Fetch API: Don't try to decode JSON if the status code isn't 200.

---
 main.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/main.js b/main.js
index 88ac044..231f492 100644
--- a/main.js
+++ b/main.js
@@ -3870,7 +3870,14 @@ const [vectorLayers, featureOverlayLayer] = (function() {
       headers: {
         'Content-Type': 'application/json; charset=UTF-8'
       }
-    }).then((resp) => resp.json())
+    })
+      .then(function(resp) {
+        if (resp.status === 200) {
+          return resp.json();
+        } else {
+          throw new Error(`${resp.url} [${resp.status}]`);
+        }
+      })
       .then(function(data) {
         /* the data is received from the CGI in the order it was sent */
         /* TODO optimizations on the CGI would break the above assumption, so the
@@ -3916,6 +3923,9 @@ const [vectorLayers, featureOverlayLayer] = (function() {
           popover.tip.classList.remove('inprogress');
         }
       })
+      .catch(function(e) {
+        console.log(e);
+      })
       .finally(function() {
         document.body.classList.remove('inprogress');
       });
-- 
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