diff --git a/autotests/data/plainText.pdf b/autotests/data/plainText.pdf
new file mode 100644
--- /dev/null
+++ b/autotests/data/plainText.pdf
@@ -0,0 +1 @@
+This is a text file with wrong file ending. 
diff --git a/autotests/parttest.cpp b/autotests/parttest.cpp
--- a/autotests/parttest.cpp
+++ b/autotests/parttest.cpp
@@ -15,6 +15,8 @@
 #include "../ui/pageview.h"
 
 #include <KConfigDialog>
+#include <KPluginMetaData>
+#include <KParts/OpenUrlArguments>
 
 #include <QClipboard>
 #include <QScrollBar>
@@ -39,6 +41,8 @@
         void testGeneratorPreferences();
         void testSelectText();
         void testClickInternalLink();
+        void testOpenUrlArguments();
+        void testChooseBackendByMimeType();
 };
 
 class PartThatHijacksQueryClose : public Okular::Part
@@ -251,6 +255,37 @@
     QCOMPARE(part.m_document->currentPage(), 1u);
 }
 
+// Test that OpenUrlArguments passed to Okular are not dropped on calls to openUrl
+void PartTest::testOpenUrlArguments()
+{
+    QVariantList dummyArgs;
+    Okular::Part part(NULL, NULL, dummyArgs);
+    
+    KParts::OpenUrlArguments args;
+    args.setMimeType(QStringLiteral("text/plain"));
+
+    part.setArguments(args);
+    
+    part.openUrl(QUrl::fromLocalFile(KDESRCDIR "data/file1.pdf"));
+    
+    QCOMPARE( part.arguments().mimeType(), QStringLiteral("text/plain") );
+}
+
+// Test that Okular uses the correct backend when given a mime type through OpenUrlArguments
+void PartTest::testChooseBackendByMimeType()
+{
+    QVariantList dummyArgs;
+    Okular::Part part(NULL, NULL, dummyArgs);
+    
+    KParts::OpenUrlArguments args;
+    args.setMimeType("text/plain");
+    
+    part.setArguments(args);
+    part.openUrl(QUrl::fromLocalFile(KDESRCDIR "data/plainText.pdf"));
+    
+    QCOMPARE( part.m_document->generatorInfo().pluginId(), QStringLiteral("okular_txt") );
+}
+
 }
 
 int main(int argc, char *argv[])
diff --git a/part.cpp b/part.cpp
--- a/part.cpp
+++ b/part.cpp
@@ -1397,7 +1397,7 @@
         }
         else
         {
-            mimes << pathMime << argMime;
+            mimes << argMime << pathMime;
         }
 
         if (mimes[0].name() == QLatin1String("text/plain")) {
@@ -1541,9 +1541,15 @@
 
 bool Part::openUrl(const QUrl &_url)
 {
+    // The subsequent call to closeUrl clears the arguments. 
+    // We want to save them and restore them later.
+    KParts::OpenUrlArguments args = arguments();
+    
     // Close current document if any
     if ( !closeUrl() )
         return false;
+    
+    setArguments(args);
 
     QUrl url( _url );
     if ( url.hasFragment() )