diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/README.md b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/README.md
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+This directory contains an experimental feature that is not currently standardized due to a security
+issue. Support was removed in https://github.com/whatwg/html/pull/4943.
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.tentative.html
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diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/module.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/module.tentative.html
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diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/parse-error.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/parse-error.tentative.html
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diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/utf8.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/utf8.tentative.html
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diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/valid-content-type.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/valid-content-type.tentative.html
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rename from testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/valid-content-type.html
rename to testing/web-platform/tests/html/semantics/scripting-1/the-script-element/json-module/valid-content-type.tentative.html