bug #47920: fixes unitialized variable.

extensions/psm-glue/src/nsSecureBrowserUIImpl.cpp

@@ -666,11 +666,12 @@ nsSecureBrowserUIImpl::CheckPost(nsIURI *actionURL, PRBool *okayToPost)
         return rv;
     
     // if we are posting to a secure link from a secure page, all is okay.
-    if (secure  && mIsSecureDocument)
+    if (secure  && mIsSecureDocument) {
+        *okayToPost = PR_TRUE;
         return NS_OK;
+    }
 
-
-    PRBool boolpref = PR_TRUE;    
+    PRBool boolpref = PR_TRUE;
 
     // posting to a non https URL.
     mPref->GetBoolPref(INSECURE_SUBMIT_PREF, &boolpref);