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fix off by 1 error in navigation history

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This commit is contained in:
Jeremy Kauffman 2017-08-31 08:59:29 -04:00
parent f12e3551e2
commit a9113369ef
1 changed files with 2 additions and 7 deletions
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9
ui/js/reducers/navigation.js
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@ -41,17 +41,12 @@ reducers[types.HISTORY_NAVIGATE] = (state, action) => {
let newState = {};
const path = action.data.url,
previousIndex = index - 1;
const path = action.data.url;
// Check for duplicated
if (action.data.index >= 0) {
newState.index = action.data.index;
} else if (
previousIndex === -1 ||
!stack[previousIndex] ||
stack[previousIndex].path !== path
) {
} else if (!stack[index] || stack[index].path !== path) {
newState.stack = [...stack.slice(0, index + 1), { path, scrollY: 0 }];
newState.index = newState.stack.length - 1;
}