[WinForms] Fix #137: memory leak in evaluate_js

r0x0r · Oct 18, 2017 · ab355cc · ab355cc
1 parent 672d1b5
commit ab355cc
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/webview/winforms.py b/webview/winforms.py
@@ -250,11 +250,14 @@ def _evaluate_js():
             document = self.browser.web_browser.Document
             script_element = document.CreateElement('script')
             function_name = 'invoke' + uuid1().hex
-            code = 'function {0}() {{return eval("{1}")}}'.format(function_name, _escape_string(script))
+            code = 'function {0}() {{ {0} = null; return eval("{1}"); }}'
+            code = code.format(function_name, _escape_string(script))
+
             script_element.InnerText = code
             document.Body.AppendChild(script_element)
             self._js_result = document.InvokeScript(function_name)
             self._js_result_semaphor.release()
+            script_element.OuterHTML = ''
 
         if self.browser.web_browser.InvokeRequired:
             self.browser.web_browser.Invoke(Func[Type](_evaluate_js))