fix(workers): Make importScripts() use the same HTTP client as fetch (#12540)

The initial implementation of `importScripts()` in #11338 used
`reqwest`'s default client to fetch HTTP scripts, which meant it would
not use certificates or other fetching configuration passed by command
line flags. This change fixes it.

Author: Andreu Botella

runtime/ops/web_worker/sync_fetch.rs

@@ -38,6 +38,8 @@ pub fn op_worker_sync_fetch(
   let handle = state.borrow::<WebWorkerInternalHandle>().clone();
   assert_eq!(handle.worker_type, WebWorkerType::Classic);
 
+  let client = state.borrow::<reqwest::Client>().clone();
+
   // TODO(andreubotella) It's not good to throw an exception related to blob
   // URLs when none of the script URLs use the blob scheme.
   // Also, in which contexts are blob URLs not supported?
@@ -59,14 +61,16 @@ pub fn op_worker_sync_fetch(
     let handles: Vec<_> = scripts
       .into_iter()
       .map(|script| -> JoinHandle<Result<SyncFetchScript, AnyError>> {
+        let client = client.clone();
         let blob_store = blob_store.clone();
         runtime.spawn(async move {
           let script_url = Url::parse(&script)
             .map_err(|_| type_error("Invalid script URL"))?;
 
           let (body, mime_type, res_url) = match script_url.scheme() {
             "http" | "https" => {
-              let resp = reqwest::get(script_url).await?.error_for_status()?;
+              let resp =
+                client.get(script_url).send().await?.error_for_status()?;
 
               let res_url = resp.url().to_string();
 

tools/wpt/expectation.json

@@ -9070,9 +9070,7 @@
           ],
           "catch.sub.any.worker.html": [
             "Cross-origin syntax error",
-            "Cross-origin throw",
-            "Redirect-to-cross-origin syntax error",
-            "Redirect-to-Cross-origin throw"
+            "Cross-origin throw"
           ],
           "report-error-cross-origin.sub.any.worker.html": false,
           "report-error-redirect-to-cross-origin.sub.any.worker.html": false,