1 files changed, 10 insertions, 1 deletions
diff --git a/packages/meshbay-client/src/main.js b/packages/meshbay-client/src/main.js
index cbaabc4..0020084 100644
--- a/packages/meshbay-client/src/main.js
+++ b/packages/meshbay-client/src/main.js
@@ -2218,7 +2218,16 @@ function registerBridge() {
       await confirmFolder(body.path);
       return ['POST', target, body];
     },
-    updateRoot:       (a) => ['PATCH', root(a), anObject(a.updates)],
+    // Opening a folder to writes from every member is asked like sharing it;
+    // closing it, or the removable flag, only narrows.
+    updateRoot: async (a) => {
+      const updates = anObject(a.updates);
+      if (updates.writable === true) {
+        await confirmOrRefuse('native.root_writable_confirm',
+                              { name: aText(a.rootName, 'the folder name') });
+      }
+      return ['PATCH', root(a), updates];
+    },
     ejectRoot:        (a) => ['PUT', `${root(a)}/eject`],
     plugRoot:         (a) => ['PUT', `${root(a)}/plug`],
     removeRoot:       (a) => ['DELETE', root(a)],