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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Changes to slot children should trigger slotchange"
href="https://bugs.webkit.org/show_bug.cgi?id=169718">169718</a>
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<th>Summary</th>
<td>Changes to slot children should trigger slotchange
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>Safari Technology Preview
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<th>Hardware</th>
<td>Macintosh
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<th>OS</th>
<td>macOS 10.12
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>HTML DOM
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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</tr>
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<th>Reporter</th>
<td>jan@component.kitchen
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<th>CC</th>
<td>cdumez@apple.com
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<pre>See <a href="http://jsbin.com/pimijip/edit?html,console,output">http://jsbin.com/pimijip/edit?html,console,output</a>.
This adds a child node to a `slot`.
Expect: this triggers a `slotchange` event. Blink does this as expected.
Actual: this doesn't trigger `slotchange`.
Rationale: If no nodes are assigned to a slot, then invoking `assignedNodes` on the slot will return any children of the slot itself. That is, the slot's own children serve as default content. Those children will be returned when asking for `assignedNodes`. Changes in the slot's children will be reflected in subsequent requests for `assignedNodes`. Since the set of `assignedNodes` is changing, the slot should be raising `slotchange`.
(If nodes *are* assigned to a slot, changes in the slot's direct children will not affect `assignedNodes`, and hence should *not* raise `slotchange`. Blink gets this right.)</pre>
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