diff options
Diffstat (limited to 'testing/web-platform/tests/fetch/metadata/resources/message-opener.html')
| -rw-r--r-- | testing/web-platform/tests/fetch/metadata/resources/message-opener.html | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fetch/metadata/resources/message-opener.html b/testing/web-platform/tests/fetch/metadata/resources/message-opener.html new file mode 100644 index 0000000000..eb2af7b250 --- /dev/null +++ b/testing/web-platform/tests/fetch/metadata/resources/message-opener.html @@ -0,0 +1,17 @@ +<script> +/** + * Send a message to the opening browsing context when the document is + * "completely loaded" (a condition which occurs immediately after the `load` + * and `pageshow` events are fired). + * https://html.spec.whatwg.org/multipage/parsing.html#the-end + */ +'use strict'; + +// The `pageshow` event is used instead of the `load` event because this +// document may itself be accessed via history traversal. In such cases, the +// browser may choose to reuse a cached document and therefore fire no +// additional `load` events. +addEventListener('pageshow', () => { + setTimeout(() => opener.postMessage(null, '*'), 0); +}); +</script> |