diff --git a/veilid-core/src/rpc_processor/coders/sequencing.rs b/veilid-core/src/rpc_processor/coders/sequencing.rs
new file mode 100644
index 00000000..187762fc
--- /dev/null
+++ b/veilid-core/src/rpc_processor/coders/sequencing.rs
@@ -0,0 +1,17 @@
+use super::*;
+
+pub fn encode_sequencing(sequencing: Sequencing) -> veilid_capnp::Sequencing {
+    match sequencing {
+        Sequencing::NoPreference => veilid_capnp::Sequencing::NoPreference,
+        Sequencing::PreferOrdered => veilid_capnp::Sequencing::PreferOrdered,
+        Sequencing::EnsureOrdered => veilid_capnp::Sequencing::EnsureOrdered,
+    }
+}
+
+pub fn decode_sequencing(sequencing: veilid_capnp::Sequencing) -> Sequencing {
+    match sequencing {
+        veilid_capnp::Sequencing::NoPreference => Sequencing::NoPreference,
+        veilid_capnp::Sequencing::PreferOrdered => Sequencing::PreferOrdered,
+        veilid_capnp::Sequencing::EnsureOrdered => Sequencing::EnsureOrdered,
+    }
+}
diff --git a/veilid-core/src/rpc_processor/operation_waiter.rs b/veilid-core/src/rpc_processor/operation_waiter.rs
index 32206ded..6ea1e7b3 100644
--- a/veilid-core/src/rpc_processor/operation_waiter.rs
+++ b/veilid-core/src/rpc_processor/operation_waiter.rs
@@ -121,7 +121,7 @@ where
         Ok(res
             .on_timeout(|| {
                 log_rpc!(debug "op wait timed out: {}", handle.op_id);
-                log_rpc!(debug "backtrace: {}", debug_backtrace());
+                debug_print_backtrace();
                 self.cancel_op_waiter(handle.op_id);
             })
             .map(|res| {
diff --git a/veilid-tools/src/tools.rs b/veilid-tools/src/tools.rs
index 7ef635d1..632336a1 100644
--- a/veilid-tools/src/tools.rs
+++ b/veilid-tools/src/tools.rs
@@ -303,3 +303,28 @@ pub fn debug_backtrace() -> String {
     let bt = backtrace::Backtrace::new();
     format!("{:?}", bt)
 }
+
+pub fn debug_print_backtrace() {
+    if is_debug_backtrace_enabled() {
+        debug!("{}", debug_backtrace());
+    }
+}
+
+pub fn is_debug_backtrace_enabled() -> bool {
+    cfg_if! {
+        if #[cfg(debug_assertions)] {
+            cfg_if! {
+                if #[cfg(target_arch = "wasm32")] {
+                    let rbenv = get_wasm_global_string_value("RUST_BACKTRACE").unwrap_or_default();
+                }
+                else
+                {
+                    let rbenv = std::env::var("RUST_BACKTRACE").unwrap_or_default();
+                }
+            }
+            rbenv == "1" || rbenv == "full"
+        } else {
+            false
+        }
+    }
+}
diff --git a/veilid-tools/src/wasm.rs b/veilid-tools/src/wasm.rs
index bfecbf9b..1a54aee5 100644
--- a/veilid-tools/src/wasm.rs
+++ b/veilid-tools/src/wasm.rs
@@ -21,7 +21,7 @@ pub fn is_browser() -> bool {
         return cache != 0;
     }
 
-    let res = Reflect::has(&global().as_ref(), &"window".into()).unwrap_or_default();
+    let res = Reflect::has(&global().as_ref(), &"navigator".into()).unwrap_or_default();
 
     CACHE.store(res as i8, Ordering::Relaxed);
 
@@ -35,7 +35,7 @@ pub fn is_browser_https() -> bool {
         return cache != 0;
     }
 
-    let res = js_sys::eval("window.location.protocol === 'https'")
+    let res = js_sys::eval("self.location.protocol === 'https'")
         .map(|res| res.is_truthy())
         .unwrap_or_default();
 
@@ -44,6 +44,13 @@ pub fn is_browser_https() -> bool {
     res
 }
 
+pub fn get_wasm_global_string_value<K: AsRef<str>>(key: K) -> Option<String> {
+    let Ok(v) = Reflect::get(&global().as_ref(), &JsValue::from_str(key.as_ref())) else {
+        return None;
+    };
+    v.as_string()
+}
+
 #[derive(ThisError, Debug, Clone, Eq, PartialEq)]
 #[error("JsValue error")]
 pub struct JsValueError(String);