diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..eb77e83
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+build-peb-Desktop_Qt_5_2_1_clang_64bit-Debug/
+src/peb.pro.user
+peb
diff --git a/src/peb.cpp b/src/peb.cpp
index 103f44f..cff5839 100755
--- a/src/peb.cpp
+++ b/src/peb.cpp
@@ -623,7 +623,7 @@ bool Page::acceptNavigationRequest (QWebFrame *frame,
     // Open not allowed web site using default browser:
     if (navigationType == QWebPage::NavigationTypeLinkClicked and
          request.url().scheme().contains ("http") and
-         (! (QUrl ("http://perl-executing-browser-pseudodomain/"))
+         (! (QUrl (PEB_DOMAIN))
            .isParentOf (request.url())) and
          (! request.url().authority().contains ("localhost")) and
          (! request.url().authority().contains ("www.perl.org"))) {
@@ -668,7 +668,7 @@ bool Page::acceptNavigationRequest (QWebFrame *frame,
     // Open local content in a new window
     // (with the exception of result from long-running script):
     if (frame != Page::currentFrame() and
-            (QUrl ("http://perl-executing-browser-pseudodomain/"))
+            (QUrl (PEB_DOMAIN))
             .isParentOf (request.url())) {
         if (! Page::mainFrame()->childFrames().contains (frame)) {
             if (! request.url().path().contains ("longrun")) {
@@ -702,7 +702,7 @@ bool Page::acceptNavigationRequest (QWebFrame *frame,
 
     // Load local HTML page invoked from hyperlink:
     if (navigationType == QWebPage::NavigationTypeLinkClicked and
-         (QUrl ("http://perl-executing-browser-pseudodomain/"))
+         (QUrl (PEB_DOMAIN))
          .isParentOf (request.url()) and
          (request.url().path().contains (".htm"))) {
         filepath = request.url()
@@ -724,7 +724,7 @@ bool Page::acceptNavigationRequest (QWebFrame *frame,
 
     // Execute local long-running script invoked from hyperlink:
     if (navigationType == QWebPage::NavigationTypeLinkClicked and
-         (QUrl ("http://perl-executing-browser-pseudodomain/"))
+         (QUrl (PEB_DOMAIN))
          .isParentOf (request.url()) and
          (request.url().path().contains ("longrun"))){
         qDebug() << "Long-running script:" << request.url().toString();
diff --git a/src/peb.h b/src/peb.h
index f7003f7..c3145cc 100755
--- a/src/peb.h
+++ b/src/peb.h
@@ -12,6 +12,11 @@
 #ifndef PEB_H
 #define PEB_H
 
+// The domain of Perl Executing Browser
+#ifndef PEB_DOMAIN
+#define PEB_DOMAIN "http://perl-executing-browser-pseudodomain/"
+#endif
+
 #include <qglobal.h>
 #if QT_VERSION >= 0x050000
 // Qt5 code:
@@ -128,7 +133,7 @@ class ModifiedNetworkAccessManager : public QNetworkAccessManager
         // 2.) script started in a new window,
         // 3.) script, which was fed with data from local form using CGI GET method
         if (operation == GetOperation and
-                (QUrl ("http://perl-executing-browser-pseudodomain/"))
+                (QUrl (PEB_DOMAIN))
                 .isParentOf(request.url()) and
                 (!request.url().path().contains ("longrun")) and
                 (!request.url().toString().contains ("debugger"))) {
@@ -238,7 +243,7 @@ class ModifiedNetworkAccessManager : public QNetworkAccessManager
         // Get data from local form using CGI POST method and
         // execute associated local script:
         if (operation == PostOperation and
-                (QUrl("http://perl-executing-browser-pseudodomain/"))
+                (QUrl(PEB_DOMAIN))
                 .isParentOf (request.url())) {
             QString postData;
             QByteArray outgoingByteArray;
@@ -624,7 +629,7 @@ public slots:
                      (QApplication::applicationDirPath()+
                       QDir::separator()+settings.startPage)));
         } else {
-            setUrl (QUrl (QString ("http://perl-executing-browser-pseudodomain/" +
+            setUrl (QUrl (QString (PEB_DOMAIN +
                                    settings.startPage)));
         }
     }
@@ -713,7 +718,7 @@ public slots:
         QMenu *menu = mainPage->createStandardContextMenu();
         if (!qWebHitTestResult.linkUrl().isEmpty()) {
             qWebHitTestURL = qWebHitTestResult.linkUrl();
-            if (QUrl ("http://perl-executing-browser-pseudodomain/")
+            if (QUrl (PEB_DOMAIN)
                     .isParentOf (qWebHitTestURL)) {
                 menu->addSeparator ();
                 QAction *editAct = menu->addAction (tr ("&Edit"));