[wasm] Match ESM worker tests to worker-helper message shape - #62118

[taskcluster 2026-08-21 15:53:12.840Z] Task ID: BK5lCTCGTvuFZjwD8uYBBw
[taskcluster 2026-08-21 15:53:12.840Z] Worker ID: 3960567751015517933
[taskcluster 2026-08-21 15:53:12.840Z] Worker Group: us-east4-a
[taskcluster 2026-08-21 15:53:12.840Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-08-21 15:53:12.840Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-08-21 15:53:12.840Z] Worker Version: 46.1.0
[taskcluster 2026-08-21 15:53:12.840Z] Public IP: 8.234.229.129
[taskcluster 2026-08-21 15:53:12.840Z] Hostname: proj-wpt-ci-m3ujsuket5-ujvdmd7t9pg

[taskcluster 2026-08-21 15:53:13.866Z] === Task Starting ===
+ '[' '' ']'
+ '[' -d /etc/profile.d ']'
+ for i in /etc/profile.d/*.sh
+ '[' -r /etc/profile.d/01-locale-fix.sh ']'
+ . /etc/profile.d/01-locale-fix.sh
+++ /usr/bin/locale-check C.UTF-8
++ eval
+ for i in /etc/profile.d/*.sh
+ '[' -r /etc/profile.d/apps-bin-path.sh ']'
+ . /etc/profile.d/apps-bin-path.sh

...(417 lines hidden)...

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Warning: could not load product 'firefox' for argument registration: No module named 'mozleak'
Warning: could not load product 'firefox_android' for argument registration: No module named 'mozrunner'
 0:00.00 INFO Set tests_root to /home/test/web-platform-tests
 0:00.00 INFO Set metadata_root to /home/test/web-platform-tests
 0:00.00 INFO Set manifest_update to True
 0:00.00 INFO Set manifest_download to True
 0:30.25 INFO Identified 2 affected tests
 0:30.25 INFO Installing browser
 0:30.27 INFO Downloading Chrome for Testing from https://storage.googleapis.com/chrome-for-testing-public/153.0.7993.0/linux64/chrome-linux64.zip
 0:33.76 INFO Downloading Mojo bindings from https://storage.googleapis.com/chrome-for-testing-public/153.0.7993.0/mojojs.zip
 0:33.81 INFO MojoJS enabled automatically (mojojs_path: /home/test/web-platform-tests/_venv3/mojojs/gen)
 0:33.84 INFO Download info for matching ChromeDriver version found.
 0:33.84 INFO Downloading ChromeDriver from https://storage.googleapis.com/chrome-for-testing-public/153.0.7993.0/linux64/chromedriver-linux64.zip
 0:34.08 INFO Automatically turning on experimental features
 0:43.88 INFO Installed font: Ahem.ttf
 0:44.83 wptserve INFO Starting http server on http://127.0.0.1:8000
 0:44.87 wptserve INFO Starting http server on http://127.0.0.1:8002
 0:44.90 wptserve INFO Starting http server on http://127.0.0.1:8001
 0:44.91 wptserve INFO Starting http server on http://127.0.0.1:8003
 0:44.94 wptserve INFO Starting https server on https://127.0.0.1:8444
 0:44.96 wptserve INFO Starting https server on https://127.0.0.1:8446
 0:44.97 wptserve INFO Starting https server on https://127.0.0.1:8443
 0:44.97 wptserve INFO Starting http2 server on https://127.0.0.1:9000
 0:44.98 wptserve INFO Starting https server on https://127.0.0.1:8445
 0:44.98 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:44.98 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:44.98 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:44.99 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:44.99 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:44.99 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:45.08 wptserve INFO Starting WebTransport over HTTP/3 server on 127.0.0.1:11000
 0:45.27 SUITE_START: web-platform-test - running 2 tests
mem avail: 14217 of 15806 MiB (89.95%), swap free:    0 of    0 MiB ( 0.00%)
 1:00.14 INFO Using 1 child processes
 1:00.14 INFO Starting WebDriver: /home/test/web-platform-tests/_venv3/bin/chrome/chromedriver --port=43797 --ignore-explicit-port --url-base=/ --enable-chrome-logs --disable-build-check
 1:00.17 INFO Got WebDriver port 40217
 1:00.26 pid:2844 Full command: /home/test/web-platform-tests/_venv3/bin/chrome/chromedriver --port=43797 --ignore-explicit-port --url-base=/ --enable-chrome-logs --disable-build-check
pid:2844 Starting ChromeDriver 153.0.7993.0 (7e5024c35079ae3b78a86798a5a686bed8c53576-refs/branch-heads/7993@{#1}) on port 0
 1:00.26 pid:2844 Only local connections are allowed.
 1:00.26 pid:2844 Please see https://chromedriver.chromium.org/security-considerations for suggestions on keeping ChromeDriver safe.
 1:00.26 pid:2844 ChromeDriver was started successfully on port 40217.
 1:00.26 INFO Webdriver started successfully.
 1:00.26 INFO Starting runner
 1:01.46 pid:2844 [2892:2892:0821/155544.417424:WARNING:media/gpu/vaapi/vaapi_wrapper.cc:1660] drmGetDevices2() has not found any devices
 1:01.47 pid:2844 [2892:2892:0821/155544.424245:WARNING:sandbox/policy/linux/sandbox_linux.cc:405] InitializeSandbox() called with multiple threads in process gpu-process.
 1:01.47 pid:2844 [2892:2892:0821/155544.427593:WARNING:ui/gfx/linux/gbm_support_x11.cc:48] dri3 extension not supported.
 1:01.59 pid:2844 [1787327744.543][WARNING]: You are using an unsupported command-line switch: --disable-build-check. Please don't report bugs that cannot be reproduced with this switch removed.
 1:01.59 pid:2844 [2861:2861:0821/155544.545314:ERROR:dbus/object_proxy.cc:572] Failed to call method: org.freedesktop.DBus.Properties.GetAll: object_path= /org/freedesktop/UPower/devices/DisplayDevice: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.UPower was not provided by any .service files
 1:01.59 pid:2844 [2861:2861:0821/155544.545339:WARNING:dbus/property.cc:174] GetAll request failed for: org.freedesktop.UPower.Device
 1:01.67 pid:2844 [2960:2960:0821/155544.629300:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:01.68 pid:2844 [2960:2960:0821/155544.630004:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:01.73 pid:2844 [2861:2861:0821/155544.684051:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:01.73 pid:2844 [2861:2861:0821/155544.684106:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:01.73 pid:2844 [2972:2972:0821/155544.689309:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:01.74 pid:2844 [2972:2972:0821/155544.689807:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
Failed to read: session.screen0.titlebar.left
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Failed to read: session.screen0.titlebar.right
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 1:01.77 pid:2844 [2861:2861:0821/155544.722012:WARNING:ui/base/idle/idle_linux.cc:111] None of the known D-Bus ScreenSaver services could be used.
 1:01.80 pid:2844 [2861:2861:0821/155544.755608:ERROR:dbus/object_proxy.cc:572] Failed to call method: org.freedesktop.NetworkManager.GetDevices: object_path= /org/freedesktop/NetworkManager: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.NetworkManager was not provided by any .service files
 1:01.80 pid:2844 [2984:2984:0821/155544.758528:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:01.80 pid:2844 [2984:2984:0821/155544.759382:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:01.89 pid:2844 [2999:2999:0821/155544.842855:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:01.89 pid:2844 [2999:2999:0821/155544.843159:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:01.95 TEST_START: /wasm/webapi/esm-integration/worker-import.tentative.html
 1:02.00 pid:2844 [3014:3014:0821/155544.949434:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:02.00 pid:2844 [3014:3014:0821/155544.950073:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:02.02 pid:2844 [2861:2861:0821/155544.972401:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:02.02 pid:2844 [2861:2861:0821/155544.972957:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:02.16 pid:2844 [2861:2861:0821/155545.114787:INFO:CONSOLE:0] "Failed to load module script: Expected a JavaScript-or-Wasm module script but the server responded with a MIME type of "application/wasm". Strict MIME type checking is enforced for module scripts per HTML spec.", source: http://web-platform.test:8000/wasm/webapi/esm-integration/resources/worker.wasm (0)
 1:04.70 pid:2844 [3030:3030:0821/155547.654931:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:04.70 pid:2844 [3030:3030:0821/155547.655035:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:07.49 pid:2844 [2861:2878:0821/155550.440656:ERROR:google_apis/gcm/engine/registration_request.cc:291] Registration response error message: DEPRECATED_ENDPOINT
 1:07.49 pid:2844 [2861:2878:0821/155550.444927:ERROR:google_apis/gcm/engine/mcs_client.cc:702]   Error code: 401  Error message: Authentication Failed: wrong_secret
 1:07.49 pid:2844 [2861:2878:0821/155550.444943:ERROR:google_apis/gcm/engine/mcs_client.cc:704] Failed to log in to GCM, resetting connection.
 1:12.16 pid:2844 [2861:2861:0821/155555.109095:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:12.16 pid:2844 [2861:2861:0821/155555.109152:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:12.21 TEST_END: Test TIMEOUT, expected OK. Subtests passed 0/1. Unexpected 1
NOTRUN Testing import of WebAssembly from JavaScript workerTIMEOUT /wasm/webapi/esm-integration/worker-import.tentative.html
 1:12.21 TEST_START: /wasm/webapi/esm-integration/worker.tentative.html
 1:12.24 pid:2844 [3043:3043:0821/155555.189962:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:12.24 pid:2844 [3043:3043:0821/155555.190074:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:12.25 pid:2844 [2861:2861:0821/155555.199892:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:12.25 pid:2844 [2861:2861:0821/155555.200596:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:12.39 pid:2844 [2861:2861:0821/155555.343379:INFO:CONSOLE:0] "Failed to load module script: The server responded with a non-JavaScript MIME type of "application/wasm". Strict MIME type checking is enforced for module scripts per HTML spec.", source: http://web-platform.test:8000/wasm/webapi/esm-integration/resources/worker.wasm (0)
 1:12.39 pid:2844 [2861:2861:0821/155555.348085:INFO:CONSOLE:1524] "Uncaught Error: assert_unreached: worker got an error Reached unreachable code", source: http://web-platform.test:8000/resources/testharness.js (1524)
 1:12.41 pid:2844 [2861:2861:0821/155555.361638:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:12.41 pid:2844 [2861:2861:0821/155555.361733:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:12.46 TEST_END: Test OK. Subtests passed 0/1. Unexpected 1
FAIL Testing WebAssembly worker - Uncaught Error: assert_unreached: worker got an error Reached unreachable code
    at worker.onerror (http://web-platform.test:8000/wasm/webapi/esm-integration/worker.tentative.html:14:3)

 1:12.46 INFO No more tests
 1:12.51 INFO Closing logging queue
 1:12.51 INFO queue closed
 1:12.58 SUITE_END

web-platform-test
~~~~~~~~~~~~~~~~~
Ran 4 checks (2 subtests, 2 tests)
Expected results: 1
Unexpected results: 3
  test: 1 (1 timeout)
  subtest: 2 (1 fail, 1 notrun)

Error Summary
-------------
/wasm/webapi/esm-integration/worker-import.tentative.html
  NOTRUN Testing import of WebAssembly from JavaScript worker
  TIMEOUT /wasm/webapi/esm-integration/worker-import.tentative.html
/wasm/webapi/esm-integration/worker.tentative.html
  FAIL Testing WebAssembly worker - Uncaught Error: assert_unreached: worker got an error Reached unreachable code
    at worker.onerror (http://web-platform.test:8000/wasm/webapi/esm-integration/worker.tentative.html:14:3)
 1:12.58 INFO Got 2 unexpected results, with 0 unexpected passes
 1:12.59 wptserve INFO Stopped http server on 127.0.0.1:8000
 1:12.59 wptserve INFO Stopped http server on 127.0.0.1:8002
 1:12.60 wptserve INFO Stopped http server on 127.0.0.1:8001
 1:12.61 wptserve INFO Stopped http server on 127.0.0.1:8003
 1:12.61 wptserve INFO Stopped http server on 127.0.0.1:8445
 1:12.61 wptserve INFO Stopped http server on 127.0.0.1:8444
 1:12.61 wptserve INFO Stopped http server on 127.0.0.1:8443
 1:12.61 wptserve INFO Stopped http server on 127.0.0.1:8446
 1:12.61 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 1:12.61 wptserve INFO Stopped http server on 127.0.0.1:9000
 1:12.80 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:12.80 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:12.85 INFO Removed font: Ahem.ttf
 1:12.88 INFO Closing logging queue
 1:12.88 INFO queue closed
 1:12.88 INFO Tolerating 2 unexpected results
[taskcluster 2026-08-21 15:55:58.663Z] === Task Finished ===
[taskcluster 2026-08-21 15:55:59.631Z] Successful task run with exit code: 0 completed in 166.792 seconds