exception handling

viewer.py

@@ -222,11 +222,14 @@ def view_video(uri, duration):
     run = sh.Command(player_args[0])(*player_args[1:], **player_kwargs)
 
     browser_clear(force=True)
-    while run.process.alive:
-        watchdog()
-        sleep(1)
-    if run.exit_code == 124:
-        logging.error('omxplayer timed out')
+    try:
+        while run.process.alive:
+            watchdog()
+            sleep(1)
+        if run.exit_code == 124:
+            logging.error('omxplayer timed out')
+    except sh.ErrorReturnCode_1:
+        logging.info('Resource URI is not correct, remote host is not responding or request was rejected.')
 
 
 def check_update():