Fixed console_error_panic_hook was not working

template/Cargo.toml

@@ -19,6 +19,8 @@ lto = true
 [features]
 # If you uncomment this line, it will enable `wee_alloc`:
 #default = ["wee_alloc"]
+# If you uncomment this line, it will enable `console_error_panic_hook`:
+#default = ["console_error_panic_hook"]
 
 [dependencies]
 # The `wasm-bindgen` crate provides the bare minimum functionality needed
@@ -30,19 +32,18 @@ wasm-bindgen = "0.2.45"
 # allocator, so it's not enabled by default.
 wee_alloc = { version = "0.4.2", optional = true }
 
+# The `console_error_panic_hook` crate provides better debugging of panics by
+# logging them with `console.error`. This is great for development, but requires
+# all the `std::fmt` and `std::panicking` infrastructure, so it's only enabled
+# in debug mode.
+console_error_panic_hook = { version ="0.1.5", optional = true }
+
 # The `web-sys` crate allows you to interact with the various browser APIs,
 # like the DOM.
 [dependencies.web-sys]
 version = "0.3.22"
 features = ["console"]
 
-# The `console_error_panic_hook` crate provides better debugging of panics by
-# logging them with `console.error`. This is great for development, but requires
-# all the `std::fmt` and `std::panicking` infrastructure, so it's only enabled
-# in debug mode.
-[target."cfg(debug_assertions)".dependencies]
-console_error_panic_hook = "0.1.5"
-
 # These crates are used for running unit tests.
 [dev-dependencies]
 wasm-bindgen-test = "0.2.45"

template/src/lib.rs

@@ -16,7 +16,7 @@ static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
 pub fn main_js() -> Result<(), JsValue> {
     // This provides better error messages in debug mode.
     // It's disabled in release mode so it doesn't bloat up the file size.
-    #[cfg(debug_assertions)]
+    #[cfg(feature = "console_error_panic_hook")]
     console_error_panic_hook::set_once();