Allow platforms async load to work on docs.rs crates pages

Author: GuillaumeGomez

src/web/crate_details.rs

@@ -496,7 +496,7 @@ pub(crate) async fn get_all_platforms(
     Extension(pool): Extension<Pool>,
     uri: Uri,
 ) -> AxumResult<AxumResponse> {
-    let is_crate_root = uri.path().starts_with("/crate/");
+    let is_crate_root = uri.path().contains("/crate/");
     let req_path: String = params.path.unwrap_or_default();
     let req_path: Vec<&str> = req_path.split('/').collect();
 
@@ -601,6 +601,11 @@ pub(crate) async fn get_all_platforms(
 
         (target, inner_path.join("/"))
     };
+    let inner_path = if inner_path.is_empty() {
+        format!("{name}/index.html")
+    } else {
+        format!("{name}/{inner_path}")
+    };
 
     let current_target = if latest_release.build_status {
         if target.is_empty() {
@@ -1293,7 +1298,7 @@ mod tests {
             // Same test with AJAX endpoint.
             let response = env
                 .frontend()
-                .get("/-/menus/platforms/dummy/latest/dummy")
+                .get("/-/menus/platforms/dummy/latest/dummy/")
                 .send()?;
             assert!(response.status().is_success());
             check_links(response.text()?, true, true);
@@ -1307,7 +1312,7 @@ mod tests {
             // Same test with AJAX endpoint.
             let response = env
                 .frontend()
-                .get("/-/menus/platforms/dummy/0.4.0/x86_64-pc-windows-msvc/dummy")
+                .get("/-/menus/platforms/dummy/0.4.0/x86_64-pc-windows-msvc/dummy/")
                 .send()?;
             assert!(response.status().is_success());
             check_links(response.text()?, true, true);

src/web/csp.rs

@@ -72,6 +72,9 @@ impl Csp {
         // Allow loading any font from the current origin.
         result.push_str("; font-src 'self'");
 
+        // Allow XHR.
+        result.push_str("; connect-src 'self'");
+
         // Only allow scripts with the random nonce attached to them.
         //
         // We can't just allow 'self' here, as users can upload arbitrary .js files as part of

src/web/routes.rs

@@ -237,7 +237,19 @@ pub(super) fn build_axum_routes() -> AxumRouter {
             get_internal(super::source::source_browser_handler),
         )
         .route(
-            "/-/menus/platforms/:name/:version/:target",
+            "/-/menus/platforms/crate/:name/:version",
+            get_internal(super::crate_details::get_all_platforms),
+        )
+        .route(
+            "/-/menus/platforms/crate/:name/:version/:target",
+            get_internal(super::crate_details::get_all_platforms),
+        )
+        .route(
+            "/-/menus/platforms/crate/:name/:version/:target/*path",
+            get_internal(super::crate_details::get_all_platforms),
+        )
+        .route(
+            "/-/menus/platforms/:name/:version/",
             get_internal(super::crate_details::get_all_platforms),
         )
         .route(