diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
index 909cc3e..a3bcb88 100644
--- a/LayoutTests/ChangeLog
+++ b/LayoutTests/ChangeLog
@@ -1,3 +1,19 @@
+2019-11-19  Kate Cheney  <katherine_cheney@apple.com>
+
+        [ Jazz ] http/tests/resourceLoadStatistics/cookie-deletion.html is timing out
+        https://bugs.webkit.org/show_bug.cgi?id=203813
+        <rdar://problem/54316765>
+
+        Reviewed by Alexey Proskuryakov.
+
+        Added console logging to narrow down cause of flaky test which does not
+        reproduce locally. Changed test expectations to timeout so the bots
+        actually run the test and the issue can be determined.
+
+        * http/tests/resourceLoadStatistics/cookie-deletion-expected.txt:
+        * http/tests/resourceLoadStatistics/cookie-deletion.html:
+        * platform/wk2/TestExpectations:
+
 2019-11-19  Wenson Hsieh  <wenson_hsieh@apple.com>
 
         [Clipboard API] Add support for Clipboard.readText()
diff --git a/LayoutTests/http/tests/resourceLoadStatistics/cookie-deletion-expected.txt b/LayoutTests/http/tests/resourceLoadStatistics/cookie-deletion-expected.txt
index 8b3fcfa..838d165 100644
--- a/LayoutTests/http/tests/resourceLoadStatistics/cookie-deletion-expected.txt
+++ b/LayoutTests/http/tests/resourceLoadStatistics/cookie-deletion-expected.txt
@@ -1,3 +1,21 @@
+CONSOLE MESSAGE: line 116: Test is beginning. document.location.hash is empty.
+CONSOLE MESSAGE: line 122: About to call runTest() for the first time.
+CONSOLE MESSAGE: line 61: step1. About to set a cookie
+CONSOLE MESSAGE: line 126: About to call runTest() after cookie was set. document hash is #step2
+CONSOLE MESSAGE: line 66: step2. About to open an iFrame to test for third party cookie access (should be successful)
+CONSOLE MESSAGE: line 72: step3. About to classify localhost as prevalent
+CONSOLE MESSAGE: line 76: step3. In the callback for testRunner.setStatisticsPrevalentResource
+CONSOLE MESSAGE: line 83: step4. About to open an iFrame to test for third party cookie access (should not be successful)
+CONSOLE MESSAGE: line 89: step5. About to open an iFrame to try to set a cookie as a third party (should fail)
+CONSOLE MESSAGE: line 95: step6. About to open an iFrame and fireDataModificationHandlerAndContinue
+CONSOLE MESSAGE: line 39: In fireDataModificationHandlerAndContinue
+CONSOLE MESSAGE: line 44: Calling statisticsProcessStatisticsAndDataRecords
+CONSOLE MESSAGE: line 41: In callback function for installStatisticsDidScanDataRecordsCallback
+CONSOLE MESSAGE: line 101: step7. About to open an iFrame and setAsNonPrevalentAndContinue
+CONSOLE MESSAGE: line 49: In setAsNonPrevalentAndContinue
+CONSOLE MESSAGE: line 51: In callback function for setStatisticsPrevalentResource
+CONSOLE MESSAGE: line 107: step8. About to open an iFrame and confirm third party has no cookie access
+CONSOLE MESSAGE: line 24: in finishTest
 Test for partitioned and unpartitioned cookie deletion.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/LayoutTests/http/tests/resourceLoadStatistics/cookie-deletion.html b/LayoutTests/http/tests/resourceLoadStatistics/cookie-deletion.html
index 17d8530..58ab96d 100644
--- a/LayoutTests/http/tests/resourceLoadStatistics/cookie-deletion.html
+++ b/LayoutTests/http/tests/resourceLoadStatistics/cookie-deletion.html
@@ -21,6 +21,7 @@
     const subPathToGetCookies = "/get-cookies.php?name1=" + firstPartyCookieName + "&name2=" + thirdPartyCookieName;
 
     function finishTest() {
+        console.log("in finishTest")
         setEnableFeature(false, finishJSTest);
     }
 
@@ -35,14 +36,19 @@
 
 
     function fireDataModificationHandlerAndContinue() {
+        console.log("In fireDataModificationHandlerAndContinue")
         testRunner.installStatisticsDidScanDataRecordsCallback(function() {
+            console.log("In callback function for installStatisticsDidScanDataRecordsCallback")
             setTimeout(runTest, 500);
         });
+        console.log("Calling statisticsProcessStatisticsAndDataRecords")
         testRunner.statisticsProcessStatisticsAndDataRecords();
     }
 
     function setAsNonPrevalentAndContinue() {
+        console.log("In setAsNonPrevalentAndContinue")
         testRunner.setStatisticsPrevalentResource(thirdPartyOrigin, false, function() {
+            console.log("In callback function for setStatisticsPrevalentResource")
             if (testRunner.isStatisticsPrevalentResource(thirdPartyOrigin))
                 testFailed("Host still set as prevalent resource.");
             testRunner.statisticsUpdateCookieBlocking(runTest);
@@ -52,44 +58,53 @@
     function runTest() {
         switch (document.location.hash) {
             case "#step1":
+                console.log("step1. About to set a cookie")
                 // Set first-party cookie for localhost.
                 document.location.href = thirdPartyBaseUrl + subPathToSetFirstPartyCookie + "#" + fragmentWithReturnUrl + "#step2";
                 break;
             case "#step2":
+                console.log("step2. About to open an iFrame to test for third party cookie access (should be successful)")
                 // Check that the third-party has access to its first-party cookies.
                 document.location.hash = "step3";
                 openIframe(thirdPartyBaseUrl + subPathToGetCookies + "&message=Should receive first-party cookie.", runTest);
                 break;
             case "#step3":
+                console.log("step3. About to classify localhost as prevalent")
                 // Classify localhost as prevalent.
                 document.location.hash = "step4";
                 testRunner.setStatisticsPrevalentResource(thirdPartyOrigin, true, function() {
+                    console.log("step3. In the callback for testRunner.setStatisticsPrevalentResource")
                     if (!testRunner.isStatisticsPrevalentResource(thirdPartyOrigin))
                         testFailed("Host did not get set as prevalent resource.");
                     testRunner.statisticsUpdateCookieBlocking(runTest);
                 });
                 break;
             case "#step4":
+                console.log("step4. About to open an iFrame to test for third party cookie access (should not be successful)")
                 // Check that the third-party no longer has access to its first-party cookies.
                 document.location.hash = "step5";
                 openIframe(thirdPartyBaseUrl + subPathToGetCookies + "&message=Should receive no cookies.", runTest);
                 break;
             case "#step5":
+                console.log("step5. About to open an iFrame to try to set a cookie as a third party (should fail)")
                 // Try setting a cookie as third-party.
                 document.location.hash = "step6";
                 openIframe(thirdPartyBaseUrl + subPathToSetThirdPartyCookie + "&message=Try to set third party cookie.", runTest);
                 break;
             case "#step6":
+                console.log("step6. About to open an iFrame and fireDataModificationHandlerAndContinue")
                 // Check that the third-party still has no access to cookies and then fire data record removal.
                 document.location.hash = "step7";
                 openIframe(thirdPartyBaseUrl + subPathToGetCookies + "&message=Should receive no cookies.", fireDataModificationHandlerAndContinue);
                 break;
             case "#step7":
+                console.log("step7. About to open an iFrame and setAsNonPrevalentAndContinue")
                 // Check that the third-party still has no access to cookies and then declassify localhost.
                 document.location.hash = "step8";
                 openIframe(thirdPartyBaseUrl + subPathToGetCookies + "&message=After removal, should receive no cookies.", setAsNonPrevalentAndContinue);
                 break;
             case "#step8":
+                console.log("step8. About to open an iFrame and confirm third party has no cookie access")
                 // Check that the third-party still has no access to cookies.
                 openIframe(thirdPartyBaseUrl + subPathToGetCookies + "&message=After declassified, should receive no cookies.", finishTest);
                 break;
@@ -98,15 +113,17 @@
 
     if (document.location.host === partitionHost && document.location.hash === "" && window.testRunner && window.internals) {
         setEnableFeature(true, function() {
+            console.log("Test is beginning. document.location.hash is empty.")
             testRunner.setStatisticsShouldClassifyResourcesBeforeDataRecordsRemoval(false);
             testRunner.setStatisticsMinimumTimeBetweenDataRecordsRemoval(0);
 
             testRunner.dumpChildFramesAsText();
             document.location.hash = "step1";
-
+            console.log("About to call runTest() for the first time.")
             runTest();
         });
     } else {
+        console.log("About to call runTest() after cookie was set. document hash is " + document.location.hash)
         runTest();
     }
 
diff --git a/LayoutTests/platform/wk2/TestExpectations b/LayoutTests/platform/wk2/TestExpectations
index f2e9b0a..8e259ed 100644
--- a/LayoutTests/platform/wk2/TestExpectations
+++ b/LayoutTests/platform/wk2/TestExpectations
@@ -737,7 +737,7 @@
 http/tests/resourceLoadStatistics [ Pass ]
 http/tests/websocket/connection-refusal-in-frame-resource-load-statistics.html [ Pass ]
 # These are only supported behind a compile time flag in macOS High Sierra + iOS 11, and above.
-http/tests/resourceLoadStatistics/cookie-deletion.html [ Skip ]
+http/tests/resourceLoadStatistics/cookie-deletion.html [ Pass Timeout ]
 http/tests/resourceLoadStatistics/cookies-with-and-without-user-interaction.html [ Skip ]
 http/tests/resourceLoadStatistics/strip-referrer-to-origin-for-third-party-redirects.html [ Skip ]
 http/tests/resourceLoadStatistics/strip-referrer-to-origin-for-third-party-requests.html [ Skip ]