From 8ddc75ba5fd5b2d4bc96f0d60bebd9dfe0b6c911 Mon Sep 17 00:00:00 2001
From: chaitanyapotti <chaitanya.potti@gmail.com>
Date: Fri, 16 Aug 2019 11:12:38 +0800
Subject: [PATCH 1/3] Fix for when localStorage is available but access is
 restricted

---
 packages/web3-eth-accounts/src/index.js | 27 ++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/packages/web3-eth-accounts/src/index.js b/packages/web3-eth-accounts/src/index.js
index 066343a0ae5..315af1eac58 100644
--- a/packages/web3-eth-accounts/src/index.js
+++ b/packages/web3-eth-accounts/src/index.js
@@ -525,10 +525,35 @@ Wallet.prototype.load = function (password, keyName) {
     return this.decrypt(keystore || [], password);
 };
 
-if (typeof localStorage === 'undefined') {
+if (!storageAvailable('localStorage')) {
     delete Wallet.prototype.save;
     delete Wallet.prototype.load;
 }
 
+function storageAvailable(type) {
+    var storage;
+    try {
+        storage = window[type];
+        var x = '__storage_test__';
+        storage.setItem(x, x);
+        storage.removeItem(x);
+        return true;
+    }
+    catch(e) {
+        return e instanceof DOMException && (
+            // everything except Firefox
+            e.code === 22 ||
+            // Firefox
+            e.code === 1014 ||
+            // test name field too, because code might not be present
+            // everything except Firefox
+            e.name === 'QuotaExceededError' ||
+            // Firefox
+            e.name === 'NS_ERROR_DOM_QUOTA_REACHED') &&
+            // acknowledge QuotaExceededError only if there's something already stored
+            (storage && storage.length !== 0);
+    }
+}
+
 
 module.exports = Accounts;

From f1e51ffd1b211715a1d1c94a801f24ada42cb5c8 Mon Sep 17 00:00:00 2001
From: chaitanyapotti <chaitanya.potti@gmail.com>
Date: Fri, 16 Aug 2019 11:21:55 +0800
Subject: [PATCH 2/3] DOMException not available in node

---
 packages/web3-eth-accounts/src/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/web3-eth-accounts/src/index.js b/packages/web3-eth-accounts/src/index.js
index 315af1eac58..43c454ae5a8 100644
--- a/packages/web3-eth-accounts/src/index.js
+++ b/packages/web3-eth-accounts/src/index.js
@@ -540,7 +540,7 @@ function storageAvailable(type) {
         return true;
     }
     catch(e) {
-        return e instanceof DOMException && (
+        return e && (
             // everything except Firefox
             e.code === 22 ||
             // Firefox

From dbac50f41769ece9ac342713b5fa80adccc555fb Mon Sep 17 00:00:00 2001
From: chaitanyapotti <chaitanya.potti@gmail.com>
Date: Sun, 25 Aug 2019 10:25:10 +0800
Subject: [PATCH 3/3] added comments

---
 packages/web3-eth-accounts/src/index.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/packages/web3-eth-accounts/src/index.js b/packages/web3-eth-accounts/src/index.js
index 43c454ae5a8..986e185918b 100644
--- a/packages/web3-eth-accounts/src/index.js
+++ b/packages/web3-eth-accounts/src/index.js
@@ -530,6 +530,15 @@ if (!storageAvailable('localStorage')) {
     delete Wallet.prototype.load;
 }
 
+/**
+ * Checks whether a storage type is available or not
+ * For more info on how this works, please refer to MDN documentation
+ * https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API/Using_the_Web_Storage_API#Feature-detecting_localStorage
+ *
+ * @method storageAvailable
+ * @param {String} type the type of storage ('localStorage', 'sessionStorage')
+ * @returns {Boolean} a boolean indicating whether the specified storage is available or not
+ */
 function storageAvailable(type) {
     var storage;
     try {