Fix feature soundness issues with gloo-net (#243)

* Fix feature soundness issues with gloo-net

* fmt

Author: ranile

crates/net/src/websocket/futures.rs

@@ -98,6 +98,10 @@ impl WebSocket {
     /// The error returned is [`JsError`]. See the
     /// [MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/WebSocket#exceptions_thrown)
     /// to learn more.
+    ///
+    /// This function requires `json` features because protocols are parsed by `serde` into `JsValue`.
+    #[cfg_attr(docsrs, doc(cfg(feature = "json")))]
+    #[cfg(feature = "json")]
     pub fn open_with_protocols<S: AsRef<str> + serde::Serialize>(
         url: &str,
         protocols: &[S],

crates/net/src/websocket/mod.rs

@@ -11,7 +11,7 @@ use gloo_utils::errors::JsError;
 use std::fmt;
 
 /// Message sent to and received from WebSocket.
-#[derive(Debug, PartialEq, Clone)]
+#[derive(Debug, PartialEq, Eq, Clone)]
 pub enum Message {
     /// String message
     Text(String),