diff --git a/Cargo.lock b/Cargo.lock
index b45a23f..49ae890 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1919,9 +1919,9 @@ checksum = "453ad9f582a441959e5f0d088b02ce04cfe8d51a8eaf077f12ac6d3e94164ca6"
 
 [[package]]
 name = "js-sys"
-version = "0.3.62"
+version = "0.3.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68c16e1bfd491478ab155fd8b4896b86f9ede344949b641e61501e07c2b8b4d5"
+checksum = "29c15563dc2726973df627357ce0c9ddddbea194836909d655df6a75d2cf296d"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -2707,6 +2707,7 @@ dependencies = [
  "ark-std 0.4.0",
  "cfg-if",
  "color-eyre 0.6.2",
+ "console_error_panic_hook",
  "criterion 0.4.0",
  "include_dir",
  "num-bigint",
@@ -2720,6 +2721,7 @@ dependencies = [
  "thiserror",
  "tiny-keccak",
  "wasmer",
+ "web-sys",
  "zerokit_utils",
 ]
 
@@ -3543,9 +3545,9 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.85"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b6cb788c4e39112fbe1822277ef6fb3c55cd86b95cb3d3c4c1c9597e4ac74b4"
+checksum = "4be2531df63900aeb2bca0daaaddec08491ee64ceecbee5076636a3b026795a8"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -3553,9 +3555,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.85"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "35e522ed4105a9d626d885b35d62501b30d9666283a5c8be12c14a8bdafe7822"
+checksum = "614d787b966d3989fa7bb98a654e369c762374fd3213d212cfc0251257e747da"
 dependencies = [
  "bumpalo",
  "log",
@@ -3580,9 +3582,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.85"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "358a79a0cb89d21db8120cbfb91392335913e4890665b1a7981d9e956903b434"
+checksum = "a1f8823de937b71b9460c0c34e25f3da88250760bec0ebac694b49997550d726"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -3590,9 +3592,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.85"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4783ce29f09b9d93134d41297aded3a712b7b979e9c6f28c32cb88c973a94869"
+checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3603,9 +3605,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.85"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a901d592cafaa4d711bc324edfaff879ac700b19c3dfd60058d2b445be2691eb"
+checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
 
 [[package]]
 name = "wasm-bindgen-test"
@@ -3995,9 +3997,9 @@ dependencies = [
 
 [[package]]
 name = "web-sys"
-version = "0.3.62"
+version = "0.3.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16b5f940c7edfdc6d12126d98c9ef4d1b3d470011c47c76a6581df47ad9ba721"
+checksum = "77afa9a11836342370f4817622a2f0f418b134426d91a82dfb48f532d2ec13ef"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
diff --git a/Cargo.toml b/Cargo.toml
index d056920..2f4846f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,6 +19,7 @@ opt-level = 3
 [profile.release.package."rln-wasm"]
 # Tell `rustc` to optimize for small code size.
 opt-level = "s"
+debug = true
 
 [profile.release.package."semaphore"]
 codegen-units = 1
diff --git a/rln/Cargo.toml b/rln/Cargo.toml
index 378d596..b6ce22d 100644
--- a/rln/Cargo.toml
+++ b/rln/Cargo.toml
@@ -49,6 +49,9 @@ serde_json = "=1.0.96"
 serde = { version = "=1.0.163", features = ["derive"] }
 
 include_dir = "=0.7.3"
+console_error_panic_hook = "0.1.7"
+web-sys = { version = "0.3.69", features = ["console"] }
+
 
 [dev-dependencies]
 sled = "=0.34.7"
diff --git a/rln/src/protocol.rs b/rln/src/protocol.rs
index f460fad..1fc1def 100644
--- a/rln/src/protocol.rs
+++ b/rln/src/protocol.rs
@@ -103,29 +103,50 @@ pub fn serialize_witness(rln_witness: &RLNWitnessInput) -> Result<Vec<u8>> {
     Ok(serialized)
 }
 
+extern crate web_sys;
+
 pub fn deserialize_witness(serialized: &[u8]) -> Result<(RLNWitnessInput, usize)> {
     let mut all_read: usize = 0;
 
     let (identity_secret, read) = bytes_le_to_fr(&serialized[all_read..]);
     all_read += read;
+    web_sys::console::log_1(&"Read identity secret".into());
+    web_sys::console::log_1(&identity_secret.to_string().into());
+    web_sys::console::log_1(&all_read.to_string().into());
 
     let (path_elements, read) = bytes_le_to_vec_fr(&serialized[all_read..])?;
     all_read += read;
+    web_sys::console::log_1(&"Read path elements".into());
+    web_sys::console::log_1(&format!("{:?}", path_elements).into());
+    web_sys::console::log_1(&all_read.to_string().into());
 
     let (identity_path_index, read) = bytes_le_to_vec_u8(&serialized[all_read..])?;
     all_read += read;
+    web_sys::console::log_1(&"Read identity path index".into());
+    web_sys::console::log_1(&format!("{:?}", identity_path_index).into());
+    web_sys::console::log_1(&all_read.to_string().into());
 
     let (x, read) = bytes_le_to_fr(&serialized[all_read..]);
     all_read += read;
+    web_sys::console::log_1(&"Read x".into());
+    web_sys::console::log_1(&x.to_string().into());
+    web_sys::console::log_1(&all_read.to_string().into());
 
     let (epoch, read) = bytes_le_to_fr(&serialized[all_read..]);
     all_read += read;
+    web_sys::console::log_1(&"Read epoch".into());
+    web_sys::console::log_1(&epoch.to_string().into());
+    web_sys::console::log_1(&all_read.to_string().into());
 
     let (rln_identifier, read) = bytes_le_to_fr(&serialized[all_read..]);
     all_read += read;
+    web_sys::console::log_1(&"Read rln identifier".into());
+    web_sys::console::log_1(&rln_identifier.to_string().into());
+    web_sys::console::log_1(&all_read.to_string().into());
 
     // TODO: check rln_identifier against public::RLN_IDENTIFIER
     if serialized.len() != all_read {
+        web_sys::console::log_1(&"serialized length is not equal to all_read".into());
         return Err(Report::msg("serialized length is not equal to all_read"));
     }
 
diff --git a/rln/src/public.rs b/rln/src/public.rs
index 99a5b98..a38e6f2 100644
--- a/rln/src/public.rs
+++ b/rln/src/public.rs
@@ -14,6 +14,9 @@ use color_eyre::{Report, Result};
 use num_bigint::BigInt;
 use std::io::Cursor;
 use utils::{ZerokitMerkleProof, ZerokitMerkleTree};
+extern crate console_error_panic_hook;
+use std::panic;
+
 
 cfg_if! {
     if #[cfg(not(target_arch = "wasm32"))] {
@@ -1191,6 +1194,7 @@ impl RLN<'_> {
     ///
     /// The function returns the corresponding JSON encoding of the input [`RLNWitnessInput`](crate::protocol::RLNWitnessInput) object.
     pub fn get_rln_witness_json(&mut self, serialized_witness: &[u8]) -> Result<serde_json::Value> {
+        panic::set_hook(Box::new(console_error_panic_hook::hook));
         let (rln_witness, _) = deserialize_witness(serialized_witness)?;
         get_json_inputs(&rln_witness)
     }