XHR resources in the Inspector's Resources panel are classified as "Other" until the Inspector is closed and reopened. After that they are correctly classified as XHR resources. To repro: 1. Open the Inspector 2. Select the Resources panel 3. Load http://gmail.com/ 4. Close the Inspector 5. Reopen the Inspector and go to the Resources panel After step 3, there are no XHR resources, but many "Other" resources. After step 5, there are many XHR resources. Note that while the resources are classified as "Other" you can not see their response body data.
<rdar://problem/5965742>
Created attachment 21373 [details] patch v1 with ChangeLog
Fixed in r34158