1 files changed, 8 insertions, 0 deletions
diff --git a/dom/base/nsObjectLoadingContent.cpp b/dom/base/nsObjectLoadingContent.cpp
index 590f236c0..4978744e8 100644
--- a/dom/base/nsObjectLoadingContent.cpp
+++ b/dom/base/nsObjectLoadingContent.cpp
@@ -3628,6 +3628,14 @@ nsObjectLoadingContent::HasGoodFallback() {
       }
     }
 
+    // RULE "nosrc":
+    // Use fallback content if the object has not specified a src URI.
+    if (rulesList[i].EqualsLiteral("nosrc")) {
+      if (!mOriginalURI) {
+        return true;
+      }
+    }
+
     // RULE "adobelink":
     // Don't use fallback content when it has a link to adobe's website.
     if (rulesList[i].EqualsLiteral("adobelink")) {