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

[taskcluster 2026-08-21 15:52:50.123Z] Task ID: QKF2zWcjTCax6RNFcL3B-g
[taskcluster 2026-08-21 15:52:50.123Z] Worker ID: 9070277690093063624
[taskcluster 2026-08-21 15:52:50.123Z] Worker Group: us-central1-f
[taskcluster 2026-08-21 15:52:50.123Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-08-21 15:52:50.123Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-08-21 15:52:50.123Z] Worker Version: 46.1.0
[taskcluster 2026-08-21 15:52:50.123Z] Public IP: 146.148.50.11
[taskcluster 2026-08-21 15:52:50.123Z] Hostname: proj-wpt-ci-a635dixwr7wsf9pmrojwna

[taskcluster 2026-08-21 15:52:51.226Z] === 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

...(416 lines hidden)...

Failed to read: session.screen0.tab.width
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Failed to read: session.screen0.slit.acceptKdeDockapps
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Failed to read: session.screen0.slit.placement
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Failed to read: session.screen0.slit.onhead
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Failed to read: session.screen0.toolbar.autoHide
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Failed to read: session.screen0.iconbar.alignment
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Failed to read: session.screen0.iconbar.iconWidth
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Failed to read: session.screen0.iconbar.iconTextPadding
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Failed to read: session.screen0.iconbar.usePixmap
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Warning: could not load product 'firefox_android' for argument registration: No module named 'mozrunner'
Warning: could not load product 'firefox' for argument registration: No module named 'mozleak'
 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
 0:40.60 INFO Identified 2 affected tests
 0:40.60 INFO Installing browser
 0:40.65 INFO Downloading Chrome for Testing from https://storage.googleapis.com/chrome-for-testing-public/153.0.7993.0/linux64/chrome-linux64.zip
mem avail: 14654 of 15806 MiB (92.72%), swap free:    0 of    0 MiB ( 0.00%)
 0:44.47 INFO Downloading Mojo bindings from https://storage.googleapis.com/chrome-for-testing-public/153.0.7993.0/mojojs.zip
 0:44.56 INFO MojoJS enabled automatically (mojojs_path: /home/test/web-platform-tests/_venv3/mojojs/gen)
 0:44.59 INFO Download info for matching ChromeDriver version found.
 0:44.59 INFO Downloading ChromeDriver from https://storage.googleapis.com/chrome-for-testing-public/153.0.7993.0/linux64/chromedriver-linux64.zip
 0:44.91 INFO Automatically turning on experimental features
 0:56.17 INFO Installed font: Ahem.ttf
 0:57.37 wptserve INFO Starting http server on http://127.0.0.1:8000
 0:57.41 wptserve INFO Starting http server on http://127.0.0.1:8002
 0:57.44 wptserve INFO Starting http server on http://127.0.0.1:8001
 0:57.45 wptserve INFO Starting https server on https://127.0.0.1:8443
 0:57.45 wptserve INFO Starting http server on http://127.0.0.1:8003
 0:57.48 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:57.48 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:57.48 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:57.48 wptserve INFO Starting https server on https://127.0.0.1:8446
 0:57.49 wptserve INFO Starting http2 server on https://127.0.0.1:9000
 0:57.50 wptserve INFO Starting https server on https://127.0.0.1:8444
 0:57.50 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:57.51 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:57.51 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:57.51 wptserve INFO Starting https server on https://127.0.0.1:8445
 0:57.61 wptserve INFO Starting WebTransport over HTTP/3 server on 127.0.0.1:11000
 0:58.54 SUITE_START: web-platform-test - running 2 tests
 1:10.99 INFO Using 1 child processes
 1:11.00 INFO Starting WebDriver: /home/test/web-platform-tests/_venv3/bin/chrome/chromedriver --port=59221 --ignore-explicit-port --url-base=/ --enable-chrome-logs --disable-build-check
 1:11.02 INFO Got WebDriver port 35913
 1:11.11 pid:2843 Full command: /home/test/web-platform-tests/_venv3/bin/chrome/chromedriver --port=59221 --ignore-explicit-port --url-base=/ --enable-chrome-logs --disable-build-check
pid:2843 Starting ChromeDriver 153.0.7993.0 (7e5024c35079ae3b78a86798a5a686bed8c53576-refs/branch-heads/7993@{#1}) on port 0
 1:11.11 pid:2843 Only local connections are allowed.
 1:11.11 pid:2843 Please see https://chromedriver.chromium.org/security-considerations for suggestions on keeping ChromeDriver safe.
 1:11.11 pid:2843 ChromeDriver was started successfully on port 35913.
 1:11.11 INFO Webdriver started successfully.
 1:11.11 INFO Starting runner
 1:12.57 pid:2843 [2892:2892:0821/155537.924239:WARNING:media/gpu/vaapi/vaapi_wrapper.cc:1660] drmGetDevices2() has not found any devices
 1:12.58 pid:2843 [2892:2892:0821/155537.930237:WARNING:sandbox/policy/linux/sandbox_linux.cc:405] InitializeSandbox() called with multiple threads in process gpu-process.
 1:12.58 pid:2843 [2892:2892:0821/155537.934806:WARNING:ui/gfx/linux/gbm_support_x11.cc:48] dri3 extension not supported.
 1:12.73 pid:2843 [1787327738.082][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.
 1:12.73 pid:2843 [2860:2860:0821/155538.083811: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
 1:12.73 pid:2843 [2860:2860:0821/155538.083858:WARNING:dbus/property.cc:174] GetAll request failed for: org.freedesktop.UPower.Device
 1:12.81 pid:2843 [2960:2960:0821/155538.161734:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:12.81 pid:2843 [2960:2960:0821/155538.161866:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:12.90 pid:2843 [2860:2860:0821/155538.253937:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:12.90 pid:2843 [2860:2860:0821/155538.254019:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:12.90 pid:2843 [2972:2972:0821/155538.257152:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:12.91 pid:2843 [2972:2972:0821/155538.257368: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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 1:12.96 pid:2843 [2860:2860:0821/155538.314794:WARNING:ui/base/idle/idle_linux.cc:111] None of the known D-Bus ScreenSaver services could be used.
 1:13.00 pid:2843 [2983:2983:0821/155538.354200:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:13.00 pid:2843 [2983:2983:0821/155538.354636:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:13.07 pid:2843 [2860:2860:0821/155538.420000: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
 1:13.07 pid:2843 [2860:2860:0821/155538.420020:WARNING:services/device/geolocation/wifi_data_provider_linux.cc:171] Failed to get the device list
 1:13.14 pid:2843 [2999:2999:0821/155538.491546:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:13.14 pid:2843 [2999:2999:0821/155538.492415:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:13.24 TEST_START: /wasm/webapi/esm-integration/worker-import.tentative.html
 1:13.30 pid:2843 [2860:2860:0821/155538.647730:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:13.30 pid:2843 [2860:2860:0821/155538.647903:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:13.30 pid:2843 [3014:3014:0821/155538.649369:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:13.30 pid:2843 [3014:3014:0821/155538.650327:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:13.82 pid:2843 [2860:2860:0821/155539.175258: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)
 1:16.33 pid:2843 [3030:3030:0821/155541.684431:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:16.33 pid:2843 [3030:3030:0821/155541.684540:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:16.48 pid:2843 [2860:2877:0821/155541.836781:ERROR:google_apis/gcm/engine/registration_request.cc:291] Registration response error message: DEPRECATED_ENDPOINT
 1:23.82 pid:2843 [2860:2860:0821/155549.168775:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:23.82 pid:2843 [2860:2860:0821/155549.168854:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:23.87 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
 1:23.87 TEST_START: /wasm/webapi/esm-integration/worker.tentative.html
 1:23.91 pid:2843 [3043:3043:0821/155549.257705:WARNING:content/child/runtime_features.cc:529] SharedStorage cannot be enabled in this configuration. Use --enable-features=SharedStorageAPI in addition.
 1:23.91 pid:2843 [3043:3043:0821/155549.258083:WARNING:content/child/runtime_features.cc:539] AttributionReporting cannot be enabled in this configuration. Use --enable-features=ConversionMeasurement in addition.
 1:23.92 pid:2843 [2860:2860:0821/155549.271887:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:23.92 pid:2843 [2860:2860:0821/155549.272737:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:24.11 pid:2843 [2860:2860:0821/155549.461171: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)
 1:24.11 pid:2843 [2860:2860:0821/155549.467199:INFO:CONSOLE:1524] "Uncaught Error: assert_unreached: worker got an error Reached unreachable code", source: http://web-platform.test:8000/resources/testharness.js (1524)
 1:24.14 pid:2843 [2860:2860:0821/155549.492385:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:24.14 pid:2843 [2860:2860:0821/155549.492484:WARNING:ui/aura/window.cc:1456] StackChildLayerRelativeTo called with unmanaged layer(s). child=WebContentsViewAura child_managed=0 target=WebContentsViewAura target_managed=0
 1:24.19 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)

 1:24.19 INFO No more tests
 1:24.25 INFO Closing logging queue
 1:24.25 INFO queue closed
 1:24.33 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)
 1:24.33 INFO Got 2 unexpected results, with 0 unexpected passes
 1:24.33 wptserve INFO Stopped http server on 127.0.0.1:8000
 1:24.33 wptserve INFO Stopped http server on 127.0.0.1:8002
 1:24.33 wptserve INFO Stopped http server on 127.0.0.1:8001
 1:24.34 wptserve INFO Stopped http server on 127.0.0.1:8003
 1:24.35 wptserve INFO Stopped http server on 127.0.0.1:8443
 1:24.35 wptserve INFO Stopped http server on 127.0.0.1:8446
 1:24.35 wptserve INFO Stopped http server on 127.0.0.1:9000
 1:24.35 wptserve INFO Stopped http server on 127.0.0.1:8445
 1:24.35 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 1:24.35 wptserve INFO Stopped http server on 127.0.0.1:8444
 1:24.57 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:24.57 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:24.63 INFO Removed font: Ahem.ttf
 1:24.66 INFO Closing logging queue
 1:24.66 INFO queue closed
 1:24.66 INFO Tolerating 2 unexpected results
[taskcluster 2026-08-21 15:55:53.250Z] === Task Finished ===
[taskcluster 2026-08-21 15:55:54.344Z] Successful task run with exit code: 0 completed in 184.222 seconds