4 files changed, 16 insertions, 9 deletions
diff --git a/indra/newview/llmediactrl.cpp b/indra/newview/llmediactrl.cpp
index 7a4ed74c4c..d6d128eb29 100644
--- a/indra/newview/llmediactrl.cpp
+++ b/indra/newview/llmediactrl.cpp
@@ -67,7 +67,8 @@ LLMediaCtrl::Params::Params()
 	decouple_texture_size("decouple_texture_size", false),
 	texture_width("texture_width", 1024),
 	texture_height("texture_height", 1024),
-	caret_color("caret_color")
+	caret_color("caret_color"),
+	initial_mime_type("initial_mime_type")
 {
 	tab_stop(false);
 }
@@ -92,7 +93,8 @@ LLMediaCtrl::LLMediaCtrl( const Params& p) :
 	mDecoupleTextureSize ( false ),
 	mTextureWidth ( 1024 ),
 	mTextureHeight ( 1024 ),
-	mClearCache(false)
+	mClearCache(false),
+	mHomePageMimeType(p.initial_mime_type)
 {
 	{
 		LLColor4 color = p.caret_color().get();
@@ -101,7 +103,7 @@ LLMediaCtrl::LLMediaCtrl( const Params& p) :
 
 	setIgnoreUIScale(p.ignore_ui_scale);
 	
-	setHomePageUrl(p.start_url);
+	setHomePageUrl(p.start_url, p.initial_mime_type);
 	
 	setBorderVisible(p.border_visible);
 	
@@ -567,12 +569,12 @@ void LLMediaCtrl::navigateHome()
 
 ////////////////////////////////////////////////////////////////////////////////
 //
-void LLMediaCtrl::setHomePageUrl( const std::string urlIn )
+void LLMediaCtrl::setHomePageUrl( const std::string& urlIn, const std::string& mime_type )
 {
 	mHomePageUrl = urlIn;
 	if (mMediaSource)
 	{
-		mMediaSource->setHomeURL(mHomePageUrl);
+		mMediaSource->setHomeURL(mHomePageUrl, mime_type);
 	}
 }
 
@@ -616,7 +618,7 @@ bool LLMediaCtrl::ensureMediaSourceExists()
 		if ( mMediaSource )
 		{
 			mMediaSource->setUsedInUI(true);
-			mMediaSource->setHomeURL(mHomePageUrl);
+			mMediaSource->setHomeURL(mHomePageUrl, mHomePageMimeType);
 			mMediaSource->setVisible( getVisible() );
 			mMediaSource->addObserver( this );
 			mMediaSource->setBackgroundColor( getBackgroundColor() );
diff --git a/indra/newview/llmediactrl.h b/indra/newview/llmediactrl.h
index 310492fe02..784b266d1f 100644
--- a/indra/newview/llmediactrl.h
+++ b/indra/newview/llmediactrl.h
@@ -63,6 +63,8 @@ public:
 								texture_height;
 		
 		Optional<LLUIColor>		caret_color;
+
+		Optional<std::string>	initial_mime_type;
 		
 		Params();
 	};
@@ -109,7 +111,7 @@ public:
 		// because we control the page content.  See DEV-9530.  JC.
 		void setTrusted( bool valIn );
 
-		void setHomePageUrl( const std::string urlIn );
+		void setHomePageUrl( const std::string& urlIn, const std::string& mime_type = LLStringUtil::null );
 		std::string getHomePageUrl();
 
 		// set/clear URL to visit when a 404 page is reached
@@ -173,6 +175,7 @@ public:
 		bool mForceUpdate;
 		bool mTrusted;
 		std::string mHomePageUrl;
+		std::string mHomePageMimeType;
 		std::string mCurrentNavUrl;
 		bool mIgnoreUIScale;
 		bool mAlwaysRefresh;
diff --git a/indra/newview/llviewermedia.cpp b/indra/newview/llviewermedia.cpp
index 99220e288c..77f7740449 100644
--- a/indra/newview/llviewermedia.cpp
+++ b/indra/newview/llviewermedia.cpp
@@ -2196,7 +2196,8 @@ void LLViewerMediaImpl::navigateReload()
 //////////////////////////////////////////////////////////////////////////////////////////
 void LLViewerMediaImpl::navigateHome()
 {
-	navigateTo(mHomeURL, "", true, false);
+	bool rediscover_mimetype = mHomeMimeType.empty();
+	navigateTo(mHomeURL, mHomeMimeType, rediscover_mimetype, false);
 }
 
 //////////////////////////////////////////////////////////////////////////////////////////
diff --git a/indra/newview/llviewermedia.h b/indra/newview/llviewermedia.h
index f75f24fbf5..01063aae06 100644
--- a/indra/newview/llviewermedia.h
+++ b/indra/newview/llviewermedia.h
@@ -237,7 +237,7 @@ public:
 	std::string getCurrentMediaURL();
 	std::string getHomeURL() { return mHomeURL; }
 	std::string getMediaEntryURL() { return mMediaEntryURL; }
-    void setHomeURL(const std::string& home_url) { mHomeURL = home_url; };
+	void setHomeURL(const std::string& home_url, const std::string& mime_type = LLStringUtil::null) { mHomeURL = home_url; mHomeMimeType = mime_type;};
 	void clearCache();
 	std::string getMimeType() { return mMimeType; }
 	void scaleMouse(S32 *mouse_x, S32 *mouse_y);
@@ -401,6 +401,7 @@ private:
 	bool  mMovieImageHasMips;
 	std::string mMediaURL;			// The last media url set with NavigateTo
 	std::string mHomeURL;
+	std::string mHomeMimeType;		// forced mime type for home url
 	std::string mMimeType;
 	std::string mCurrentMediaURL;	// The most current media url from the plugin (via the "location changed" or "navigate complete" events).
 	std::string mCurrentMimeType;	// The MIME type that caused the currently loaded plugin to be loaded.