diff --git a/src/Core/Client.js b/src/Core/Client.js
index 61b9b92..1598999 100644
--- a/src/Core/Client.js
+++ b/src/Core/Client.js
@@ -79,6 +79,7 @@ define(function( require )
 		var last_tick   = Date.now();
 		var list        = [];
 		var i, count;
+		var temporaryStorage;
 
 		if (files.length) {
 			// Progressbar
@@ -142,12 +143,28 @@ define(function( require )
 			}
 		}
 
-		// Initialize client files (load GRF, etc).
-		Thread.send( 'CLIENT_INIT', {
-			files:     list,
-			grfList:   Configs.get('grfList') || 'DATA.INI',
-			save:    !!Configs.get('saveFiles')
-		}, Client.onFilesLoaded );
+		// Get temporary storage info at main thread, the worker can't access it.
+		// https://github.com/vthibault/roBrowser/issues/110
+		temporaryStorage = navigator.temporaryStorage || navigator.webkitTemporaryStorage || {
+			queryUsageAndQuota: function(callback) {
+				callback(0, 0);
+			}
+		};
+
+		temporaryStorage.queryUsageAndQuota(function(used, remaining) {
+			var quota = {
+				used: used,
+				remaining: remaining
+			};
+
+			// Initialize client files (load GRF, etc).
+			Thread.send( 'CLIENT_INIT', {
+				files:     list,
+				grfList:   Configs.get('grfList') || 'DATA.INI',
+				save:    !!Configs.get('saveFiles'),
+				quota:     quota
+			}, Client.onFilesLoaded );
+		});
 	}
 
 
@@ -389,4 +406,4 @@ define(function( require )
 	};
 
 	return Client;
-});
\ No newline at end of file
+});
diff --git a/src/Core/FileSystem.js b/src/Core/FileSystem.js
index 2d07092..39c4f9b 100644
--- a/src/Core/FileSystem.js
+++ b/src/Core/FileSystem.js
@@ -67,8 +67,9 @@ define(function()
 	 *
 	 * @param {Array} FileList
 	 * @param {boolean} save files
+	 * @param {Object} quota information
 	 */
-	function init( files, save )
+	function init( files, save, quota )
 	{
 		var requestFileSystemSync, requestFileSystem, temporaryStorage;
 		_files = normalizeFilesPath(files);
@@ -82,26 +83,22 @@ define(function()
 
 		requestFileSystemSync = self.requestFileSystemSync || self.webkitRequestFileSystemSync;
 		requestFileSystem     = self.requestFileSystem     || self.webkitRequestFileSystem;
-		temporaryStorage      = navigator.temporaryStorage || navigator.webkitTemporaryStorage;
 
-		temporaryStorage.queryUsageAndQuota(function(used, remaining){
-			var size = _clientSize || used || remaining;
+		var size = _clientSize || quota.used || quota.remaining;
 
-			requestFileSystem( self.TEMPORARY, size, function( fs ){
-				_fs      = fs;
-				_fs_sync = requestFileSystemSync( self.TEMPORARY, size );
+		requestFileSystem( self.TEMPORARY, size, function( fs ){
+			_fs      = fs;
+			_fs_sync = requestFileSystemSync( self.TEMPORARY, size );
 
-				if (save && _files.length) {
-					cleanUp();
-					buildHierarchy();
-					processUpload(0);
-				}
-
-				_save = save;
-				trigger('onready');
-			}, errorHandler);
+			if (save && _files.length) {
+				cleanUp();
+				buildHierarchy();
+				processUpload(0);
+			}
 
-		});
+			_save = save;
+			trigger('onready');
+		}, errorHandler);
 	}
 
 
@@ -485,4 +482,4 @@ define(function()
 		search:      search,
 		saveFile:    saveFile
 	};
-});
\ No newline at end of file
+});
diff --git a/src/Core/ThreadEventHandler.js b/src/Core/ThreadEventHandler.js
index 01a763a..f9b517e 100644
--- a/src/Core/ThreadEventHandler.js
+++ b/src/Core/ThreadEventHandler.js
@@ -93,7 +93,7 @@ function(      FileManager,        FileSystem,           MapLoader )
 				});
 
 				// Saving full client
-				FileSystem.init( msg.data.files, msg.data.save );
+				FileSystem.init( msg.data.files, msg.data.save, msg.data.quota );
 				break;
 
 			// Files alias
@@ -177,4 +177,4 @@ function(      FileManager,        FileSystem,           MapLoader )
 	 * Once the thread is ready
 	 */
 	postMessage({ type: 'THREAD_READY' });
-});
\ No newline at end of file
+});