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LibWeb: Look into nested session histories to find max history step

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Fixes bug when "navigate forward" button in UI is disabled after
performing following steps:
1. Load page with an iframe (top step = 0, iframe step = 0)
2. Navigate iframe to different document (top step = 0, iframe step = 1)
3. Navigate back from browser UI (top step = 0, iframe step = 0)

No test because change is only observable from browser UI.
This commit is contained in:
Aliaksandr Kalenik
2024-04-16 12:18:48 +02:00
committed by Alexander Kalenik
parent 768b1455d6
commit 9f4b922f1c
2 changed files with 25 additions and 1 deletions
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2
Userland/Libraries/LibWeb/HTML/TraversableNavigable.h
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@@ -102,6 +102,8 @@ private:
Vector<JS::NonnullGCPtr<SessionHistoryEntry>> get_session_history_entries_for_the_navigation_api(JS::NonnullGCPtr<Navigable>, int);
[[nodiscard]] bool can_go_forward() const;
// https://html.spec.whatwg.org/multipage/document-sequences.html#tn-current-session-history-step
int m_current_session_history_step { 0 };