skip tail-call-should-consume-stack-in-bbq.js on Windows SDE (17+ min)

Pass Authorization header for GitHub URLs when GITHUB_TOKEN is set.
Raises the rate limit from 60 to 5000 requests/hour, preventing
download failures when many dependencies are fetched in parallel.

Only applies to github.com URLs. No-op when GITHUB_TOKEN is unset.

cmake/scripts/DownloadUrl.cmake

@@ -30,6 +30,11 @@ else()
   set(DOWNLOAD_ACCEPT_HEADER "Accept: */*")
 endif()
 
+set(DOWNLOAD_AUTH_HEADER)
+if(DEFINED ENV{GITHUB_TOKEN} AND NOT "$ENV{GITHUB_TOKEN}" STREQUAL "" AND DOWNLOAD_URL MATCHES "^https://github\\.com/")
+  set(DOWNLOAD_AUTH_HEADER HTTPHEADER "Authorization: Bearer $ENV{GITHUB_TOKEN}")
+endif()
+
 foreach(i RANGE 10)
   set(DOWNLOAD_TMP_FILE_${i} ${DOWNLOAD_TMP_FILE}.${i})
 
@@ -38,12 +43,13 @@ foreach(i RANGE 10)
   else()
     message(STATUS "Downloading ${DOWNLOAD_URL}... (retry ${i})")
   endif()
-  
+
   file(DOWNLOAD
     ${DOWNLOAD_URL}
     ${DOWNLOAD_TMP_FILE_${i}}
     HTTPHEADER "User-Agent: cmake/${CMAKE_VERSION}"
     HTTPHEADER ${DOWNLOAD_ACCEPT_HEADER}
+    ${DOWNLOAD_AUTH_HEADER}
     STATUS DOWNLOAD_STATUS
     INACTIVITY_TIMEOUT 60
     TIMEOUT 180

cmake/tools/SetupWebKit.cmake

@@ -241,13 +241,21 @@ if(EXISTS ${WEBKIT_PATH}/package.json)
   endif()
 endif()
 
-file(
-  DOWNLOAD ${WEBKIT_DOWNLOAD_URL} ${CACHE_PATH}/${WEBKIT_FILENAME} SHOW_PROGRESS
-  STATUS WEBKIT_DOWNLOAD_STATUS
-)
-if(NOT "${WEBKIT_DOWNLOAD_STATUS}" MATCHES "^0;")
-  message(FATAL_ERROR "Failed to download WebKit: ${WEBKIT_DOWNLOAD_STATUS}")
-endif()
+foreach(WEBKIT_DOWNLOAD_ATTEMPT RANGE 1 3)
+  file(
+    DOWNLOAD ${WEBKIT_DOWNLOAD_URL} ${CACHE_PATH}/${WEBKIT_FILENAME} SHOW_PROGRESS
+    STATUS WEBKIT_DOWNLOAD_STATUS
+  )
+  if("${WEBKIT_DOWNLOAD_STATUS}" MATCHES "^0;")
+    break()
+  endif()
+  message(WARNING "WebKit download attempt ${WEBKIT_DOWNLOAD_ATTEMPT} failed: ${WEBKIT_DOWNLOAD_STATUS}")
+  file(REMOVE ${CACHE_PATH}/${WEBKIT_FILENAME})
+  if(WEBKIT_DOWNLOAD_ATTEMPT EQUAL 3)
+    message(FATAL_ERROR "Failed to download WebKit after 3 attempts: ${WEBKIT_DOWNLOAD_STATUS}")
+  endif()
+  execute_process(COMMAND ${CMAKE_COMMAND} -E sleep 5)
+endforeach()
 
 file(ARCHIVE_EXTRACT INPUT ${CACHE_PATH}/${WEBKIT_FILENAME} DESTINATION ${CACHE_PATH} TOUCH)
 file(REMOVE ${CACHE_PATH}/${WEBKIT_FILENAME})

scripts/verify-baseline.ts

@@ -180,8 +180,13 @@ if (values["jit-stress"]) {
     await runTest(`[${i + 1}/${jsFixtures.length}] ${fixture}`, ["--preload", preloadPath, join(fixturesDir, fixture)]);
   }
 
+  const skipFixtures = new Set<string>();
+  if (isWindows) {
+    // 100k recursive tail calls with exceptions — takes 17+ minutes under SDE
+    skipFixtures.add("tail-call-should-consume-stack-in-bbq.js");
+  }
   const wasmFixtures = readdirSync(wasmFixturesDir)
-    .filter(f => f.endsWith(".js"))
+    .filter(f => f.endsWith(".js") && !skipFixtures.has(f))
     .sort();
   console.log();
   console.log(`--- Wasm fixtures (BBQ/OMG) — ${wasmFixtures.length} tests`);