diff --git a/dist/localforage.js b/dist/localforage.js
index 7cc50247..203df8ba 100644
--- a/dist/localforage.js
+++ b/dist/localforage.js
@@ -343,7 +343,7 @@ if (typeof global.Promise !== 'function') {
 },{"2":2}],4:[function(_dereq_,module,exports){
 'use strict';
 
-var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
 
 function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
@@ -435,7 +435,9 @@ function createBlob(parts, properties) {
 
 // This is CommonJS because lie is an external dependency, so Rollup
 // can just ignore it.
-if (typeof Promise === 'undefined' && typeof _dereq_ !== 'undefined') {
+if (typeof Promise === 'undefined') {
+    // In the "nopromises" build this will just throw if you don't have
+    // a global promise object, but it would throw anyway later.
     _dereq_(3);
 }
 var Promise$1 = Promise;
@@ -1484,7 +1486,7 @@ function iterate$1(iterator, callback) {
     return promise;
 }
 
-function setItem$1(key, value, callback) {
+function _setItem(key, value, callback, retriesLeft) {
     var self = this;
 
     // Cast the key to a string, as that's all we can set as a key.
@@ -1526,7 +1528,11 @@ function setItem$1(key, value, callback) {
                             // more storage on Safari, this error will
                             // be called.
                             //
-                            // TODO: Try to re-run the transaction.
+                            // Try to re-run the transaction.
+                            if (retriesLeft > 0) {
+                                resolve(_setItem.apply(self, [key, originalValue, callback, retriesLeft - 1]));
+                                return;
+                            }
                             reject(sqlError);
                         }
                     });
@@ -1539,6 +1545,10 @@ function setItem$1(key, value, callback) {
     return promise;
 }
 
+function setItem$1(key, value, callback) {
+    return _setItem.apply(this, [key, value, callback, 1]);
+}
+
 function removeItem$1(key, callback) {
     var self = this;
 
diff --git a/dist/localforage.min.js b/dist/localforage.min.js
index c88f5a2d..ee51128a 100644
--- a/dist/localforage.min.js
+++ b/dist/localforage.min.js
@@ -4,4 +4,4 @@
     https://localforage.github.io/localForage
     (c) 2013-2016 Mozilla, Apache License 2.0
 */
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diff --git a/dist/localforage.nopromises.js b/dist/localforage.nopromises.js
index 2cc5e73b..41ee17ac 100644
--- a/dist/localforage.nopromises.js
+++ b/dist/localforage.nopromises.js
@@ -7,7 +7,7 @@
 (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.localforage = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw (f.code="MODULE_NOT_FOUND", f)}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
 'use strict';
 
-var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
 
 function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
@@ -99,7 +99,9 @@ function createBlob(parts, properties) {
 
 // This is CommonJS because lie is an external dependency, so Rollup
 // can just ignore it.
-if (typeof Promise === 'undefined' && typeof _dereq_ !== 'undefined') {
+if (typeof Promise === 'undefined') {
+    // In the "nopromises" build this will just throw if you don't have
+    // a global promise object, but it would throw anyway later.
     _dereq_('lie/polyfill');
 }
 var Promise$1 = Promise;
@@ -1148,7 +1150,7 @@ function iterate$1(iterator, callback) {
     return promise;
 }
 
-function setItem$1(key, value, callback) {
+function _setItem(key, value, callback, retriesLeft) {
     var self = this;
 
     // Cast the key to a string, as that's all we can set as a key.
@@ -1190,7 +1192,11 @@ function setItem$1(key, value, callback) {
                             // more storage on Safari, this error will
                             // be called.
                             //
-                            // TODO: Try to re-run the transaction.
+                            // Try to re-run the transaction.
+                            if (retriesLeft > 0) {
+                                resolve(_setItem.apply(self, [key, originalValue, callback, retriesLeft - 1]));
+                                return;
+                            }
                             reject(sqlError);
                         }
                     });
@@ -1203,6 +1209,10 @@ function setItem$1(key, value, callback) {
     return promise;
 }
 
+function setItem$1(key, value, callback) {
+    return _setItem.apply(this, [key, value, callback, 1]);
+}
+
 function removeItem$1(key, callback) {
     var self = this;
 
diff --git a/dist/localforage.nopromises.min.js b/dist/localforage.nopromises.min.js
index 379e8ca5..9f2b0b0d 100644
--- a/dist/localforage.nopromises.min.js
+++ b/dist/localforage.nopromises.min.js
@@ -4,4 +4,4 @@
     https://localforage.github.io/localForage
     (c) 2013-2016 Mozilla, Apache License 2.0
 */
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