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Search: Clear any old caches to free up quota #1594

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16 changes: 15 additions & 1 deletion js/search.js
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Original file line number Diff line number Diff line change
Expand Up @@ -35,12 +35,26 @@ const initPHPSearch = async (language) => {
return data;
};

const cleanupOld = async() => {
// Previously used cache key
const key = `search-${language}`;
const oldCache = window.localStorage.getItem(key);
if (!oldCache) {
return;
}

// Clear is used to clear all cached languages at the same time
// This reduces the chances of hitting quota
window.localStorage.clear();
}

/**
* Fetch the search index.
*
* @returns {Promise<Array>} The search index.
*/
const fetchIndex = async () => {
await cleanupOld();
const key = `search2-${language}`;
let items;
if (language === 'local') {
Expand All @@ -60,7 +74,7 @@ const initPHPSearch = async (language) => {
} catch (e) {
// Local storage might be full, or other error.
// Just continue without caching.
console.error("Failed to cache search index", e);
console.info("Failed to cache search index", e);
}
}

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