fix(sio-client): do not mangle the "_placeholder" attribute

The "_placeholder" attribute is used when sending binary data, and was incorrectly mangled (converted to a random short property, like "it", to reduce the bundle size). This bug was introduced in [1], included in `[email protected]`. [1]: 7085f0e Related: #5215
socketio · Oct 22, 2024 · ca9e994 · ca9e994
1 parent 4865f2e
commit ca9e994
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/packages/socket.io-client/support/rollup.config.umd.js b/packages/socket.io-client/support/rollup.config.umd.js
@@ -52,6 +52,7 @@ const prodBundle = {
         mangle: {
           properties: {
             regex: /^_/,
+            reserved: ["_placeholder"],
           },
         },
       }),