From eaa97f367e630c7a9efc4ded06d94e2f08c7bf98 Mon Sep 17 00:00:00 2001
From: Alexander Bruy <alexander.bruy@gmail.com>
Date: Tue, 14 Feb 2017 20:59:07 +0200
Subject: [PATCH] add anchor to help URL only if necessary

---
 src/gui/qgshelp.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/gui/qgshelp.cpp b/src/gui/qgshelp.cpp
index c4c6b5d4dca..6b0e868f057 100644
--- a/src/gui/qgshelp.cpp
+++ b/src/gui/qgshelp.cpp
@@ -87,7 +87,11 @@ QUrl QgsHelp::helpUrl( const QString& key )
         continue;
       }
       helpUrl = QUrl::fromLocalFile( filePath );
-      helpUrl.setFragment( helpPath.mid( helpPath.lastIndexOf( "#" ) + 1, -1 ) );
+      int pos = helpPath.lastIndexOf( "#" );
+      if ( pos != -1 )
+      {
+        helpUrl.setFragment( helpPath.mid( helpPath.lastIndexOf( "#" ) + 1, -1 ) );
+      }
     }
 
     helpFound = true;