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fix missing exception handler (https://github.com/uBlockOrigin/uBlock-issues/issues/141)
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@ -210,25 +210,42 @@ vAPI.cacheStorage = (function() {
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});
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}
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// https://github.com/uBlockOrigin/uBlock-issues/issues/141
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// Mind that IDBDatabase.transaction() and IDBObjectStore.put()
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// can throw:
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// https://developer.mozilla.org/en-US/docs/Web/API/IDBDatabase/transaction
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// https://developer.mozilla.org/en-US/docs/Web/API/IDBObjectStore/put
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function putToDb(input, callback) {
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if ( typeof callback !== 'function' ) {
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callback = noopfn;
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}
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var keys = Object.keys(input);
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let keys = Object.keys(input);
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if ( keys.length === 0 ) { return callback(); }
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getDb(function(db) {
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if ( !db ) { return callback(); }
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var transaction = db.transaction(STORAGE_NAME, 'readwrite');
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transaction.oncomplete =
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transaction.onerror =
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transaction.onabort = callback;
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var table = transaction.objectStore(STORAGE_NAME);
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for ( var key of keys ) {
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var entry = {};
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entry.key = key;
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entry.value = input[key];
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table.put(entry);
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entry = undefined;
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let finish = () => {
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if ( callback !== undefined ) {
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let cb = callback;
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callback = undefined;
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cb();
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}
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};
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try {
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let transaction = db.transaction(STORAGE_NAME, 'readwrite');
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transaction.oncomplete =
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transaction.onerror =
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transaction.onabort = finish;
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let table = transaction.objectStore(STORAGE_NAME);
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for ( let key of keys ) {
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let entry = {};
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entry.key = key;
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entry.value = input[key];
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table.put(entry);
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entry = undefined;
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}
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} catch (ex) {
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finish();
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}
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});
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}
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