Bug 217908 - imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-external-module.html is flaky failing
Summary: imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element...
Status: RESOLVED DUPLICATE of bug 217931
Alias: None
Product: WebKit
Classification: Unclassified
Component: DOM (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2020-10-19 09:41 PDT by Truitt Savell
Modified: 2020-12-08 13:44 PST (History)
6 users (show)

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Description Truitt Savell 2020-10-19 09:41:23 PDT 
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-external-module.html

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fscripting-1%2Fthe-script-element%2Fmoving-between-documents%2Fbefore-prepare-createHTMLDocument-parse-error-external-module.html

Diff:
--- /Volumes/Data/slave/ios-simulator-14-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-external-module-expected.txt
+++ /Volumes/Data/slave/ios-simulator-14-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-external-module-actual.txt
@@ -1,3 +1,5 @@
+CONSOLE MESSAGE: SyntaxError: Left side of assignment is not a reference.
+CONSOLE MESSAGE: ReferenceError: Can't find variable: scriptOnError
 
 
 PASS Sanity check around top-level Window

So it looks like iOS14 is causing some new console messages.
Comment 1 Truitt Savell 2020-10-19 09:54:08 PDT 
It looks like this test is related:

imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-success-external-classic.html

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fscripting-1%2Fthe-script-element%2Fmoving-between-documents%2Fbefore-prepare-createHTMLDocument-success-external-classic.html

Diff:
--- /Volumes/Data/slave/ios-simulator-14-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-success-external-classic-expected.txt
+++ /Volumes/Data/slave/ios-simulator-14-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-success-external-classic-actual.txt
@@ -1,3 +1,5 @@
+CONSOLE MESSAGE: exec
+CONSOLE MESSAGE: ReferenceError: Can't find variable: scriptOnLoad
 
 
 PASS Sanity check around top-level Window
Comment 2 Alexey Proskuryakov 2020-10-19 14:53:08 PDT 
I see failures on both iOS and macOS, and those have been happening since the test was imported in July.

This part of the test is relative straightforward, basically awaiting a createDocument async function, and putting some properties on the returned value, so this is a little surprising, and not necessarily a test bug.
Comment 3 Radar WebKit Bug Importer 2020-10-26 09:42:18 PDT 
<rdar://problem/70682313>
Comment 4 Sam Sneddon [:gsnedders] 2020-12-08 13:44:19 PST 

*** This bug has been marked as a duplicate of bug 217931 ***