Back out problematic patch causing issue #865.

This reverts commit f62eee7c510238bf93b6ad43acd8b8a79a44417c.
Verified that a hardening patch landed after this already negates what this patch was a stopgap for, so we no longer need it at all.

1 files changed, 0 insertions, 19 deletions

diff --git a/modules/libjar/nsJARChannel.cpp b/modules/libjar/nsJARChannel.cpp
index 2f721fa3f5..ee60602dae 100644
--- a/modules/libjar/nsJARChannel.cpp
+++ b/modules/libjar/nsJARChannel.cpp
@@ -995,25 +995,6 @@ nsJARChannel::OnStartRequest(nsIRequest *req, nsISupports *ctx)
     mRequest = req;
     nsresult rv = mListener->OnStartRequest(this, mListenerContext);
     mRequest = nullptr;
-    NS_ENSURE_SUCCESS(rv, rv);
-
-    // Restrict loadable content types.
-    nsAutoCString contentType;
-    GetContentType(contentType);
-    auto contentPolicyType = mLoadInfo->GetExternalContentPolicyType();
-    if (contentType.Equals(APPLICATION_HTTP_INDEX_FORMAT) &&
-        contentPolicyType != nsIContentPolicy::TYPE_DOCUMENT &&
-        contentPolicyType != nsIContentPolicy::TYPE_FETCH) {
-      return NS_ERROR_CORRUPTED_CONTENT;
-    }
-    if (contentPolicyType == nsIContentPolicy::TYPE_STYLESHEET &&
-        !contentType.EqualsLiteral(TEXT_CSS)) {
-      return NS_ERROR_CORRUPTED_CONTENT;
-    }
-    if (contentPolicyType == nsIContentPolicy::TYPE_SCRIPT &&
-        !nsContentUtils::IsJavascriptMIMEType(NS_ConvertUTF8toUTF16(contentType))) {
-      return NS_ERROR_CORRUPTED_CONTENT;
-    }
 
     return rv;
 }