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

• Status: RESOLVED
• Resolution: DUPLICATE
• Component: DOM

[Truitt Savell]

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.

[Truitt Savell]

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

[Alexey Proskuryakov]

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.

[Radar WebKit Bug Importer]

<rdar://problem/70682313>

[Sam Sneddon [:gsnedders]]

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