diff --git a/app/mindmap/buffer.py b/app/mindmap/buffer.py
index 8b37078..3315992 100644
--- a/app/mindmap/buffer.py
+++ b/app/mindmap/buffer.py
@@ -22,7 +22,7 @@
 from PyQt5.QtCore import QUrl, QTimer
 from PyQt5.QtGui import QColor
 from core.browser import BrowserBuffer
-from core.utils import touch
+from core.utils import touch, string_to_base64
 import os
 import base64
 
@@ -51,8 +51,7 @@ class AppBuffer(BrowserBuffer):
 
         if os.path.exists(self.url):
             with open(self.url, "r") as f:
-                base64_string = str(base64.b64encode(f.read().encode("utf-8")), "utf-8")
-                self.buffer_widget.execute_js("open_file('{}');".format(base64_string))
+                self.buffer_widget.execute_js("open_file('{}');".format(string_to_base64(f.read())))
         else:
             self.buffer_widget.eval_js("edit_root_node();")
 
diff --git a/core/browser.py b/core/browser.py
index 46f3bcf..89e5090 100644
--- a/core/browser.py
+++ b/core/browser.py
@@ -24,7 +24,7 @@ from PyQt5.QtCore import QUrl, Qt, QEvent, QPointF, QEventLoop, QVariant, QTimer
 from PyQt5.QtNetwork import QNetworkCookie
 from PyQt5.QtWebEngineWidgets import QWebEngineView, QWebEnginePage, QWebEngineContextMenuData, QWebEngineProfile, QWebEngineSettings
 from PyQt5.QtWidgets import QApplication, QWidget
-from core.utils import touch, is_port_in_use
+from core.utils import touch, is_port_in_use, string_to_base64
 from core.buffer import Buffer
 from urllib.parse import urlparse, parse_qs, urlunparse, urlencode
 import os
@@ -291,7 +291,7 @@ class BrowserView(QWebEngineView):
         return self.execute_js(self.get_focus_text_js)
 
     def set_focus_text(self, new_text):
-        self.set_focus_text_js = self.set_focus_text_raw.replace("%1", str(base64.b64encode(new_text.encode("utf-8")), "utf-8"));
+        self.set_focus_text_js = self.set_focus_text_raw.replace("%1", string_to_base64(new_text));
         self.eval_js(self.set_focus_text_js)
 
     def clear_focus(self):
diff --git a/core/utils.py b/core/utils.py
index fc4c27d..5d6fb23 100644
--- a/core/utils.py
+++ b/core/utils.py
@@ -23,6 +23,7 @@ from PyQt5 import QtCore
 import functools
 import os
 import socket
+import base64
 
 class PostGui(QtCore.QObject):
 
@@ -77,3 +78,6 @@ def is_port_in_use(port):
     import socket
     with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
         return s.connect_ex(('localhost', port)) == 0
+
+def string_to_base64(text):
+    return str(base64.b64encode(text.encode("utf-8")), "utf-8")