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fix: Update leptos template so that it works OOTB #790

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fix: Update leptos template so that it works OOTB #790

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e6b4376
fix: Update leptos template so that it works OOTB
natecox Aug 16, 2025
c43b01c
Merge branch 'main' into fix-leptos-template
guybedford Sep 3, 2025
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10 changes: 8 additions & 2 deletions templates/leptos/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ leptos_meta = { version = "0.8" }
leptos_router = { version = "0.8"{% if use_nightly %}, features = ["nightly"]{% endif %} }
tower-service = "0.3"
wasm-bindgen = "0.2"
worker = { version = "0.5", features = ["http", "axum", "d1"], optional = true }
worker = { version = "0.6", features = ["http", "axum", "d1"], optional = true }

[features]
hydrate = ["leptos/hydrate"]
Expand All @@ -35,6 +35,12 @@ ssr = [
"leptos_router/ssr",
]

[package.metadata.wasm-pack.profile.release]
wasm-opt = false

[package.metadata.wasm-pack.profile.dev]
wasm-opt = false

[package.metadata.leptos]
wasm-validation = false
# The name used by wasm-bindgen/cargo-leptos for the JS/WASM bundle. Defaults to the crate name
Expand Down Expand Up @@ -95,4 +101,4 @@ lib-features = ["hydrate"]
# If the --no-default-features flag should be used when compiling the lib target
#
# Optional. Defaults to false.
lib-default-features = false
lib-default-features = false
20 changes: 20 additions & 0 deletions templates/leptos/src/lib.rs
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Expand Up @@ -6,6 +6,26 @@ use crate::app::*;
pub mod app;
mod components;


#[cfg(feature = "ssr")]
#[cfg(target_family = "wasm")]
mod wasm_workaround {
unsafe extern "C" {
pub(super) fn __wasm_call_ctors();
}
}

#[cfg(feature = "ssr")]
#[wasm_bindgen::prelude::wasm_bindgen(start)]
fn start() {
// Fix for 'Read a negative address value from the stack. Did we run out of memory?'.
// See: https://github.com/cloudflare/workers-rs/issues/772
#[cfg(target_family = "wasm")]
unsafe {
wasm_workaround::__wasm_call_ctors()
};
}

#[cfg(feature = "ssr")]
pub fn register_server_functions() {
use leptos::server_fn::axum::register_explicit;
Expand Down