diff --git a/testing/normalise_result b/testing/normalise_result
index e7addb39..67b6460e 100755
--- a/testing/normalise_result
+++ b/testing/normalise_result
@@ -57,6 +57,10 @@ while( <STDIN> ) {
   /^Content-Type: / && $no_content && do {
     $_ = "";
   };
+  /^HTTP\/1\.1 100 Continue/ && do {
+    my $swallow_next_line_as_well = <STDIN>;
+    next;
+  };
 
   print;
 }
diff --git a/testing/tests/binding/1030-PUT-whole-subcalendar.result b/testing/tests/binding/1030-PUT-whole-subcalendar.result
index fb257cdc..03bfc26c 100644
--- a/testing/tests/binding/1030-PUT-whole-subcalendar.result
+++ b/testing/tests/binding/1030-PUT-whole-subcalendar.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/carddav/2003-PUT-vcard.result b/testing/tests/carddav/2003-PUT-vcard.result
index 58ba3614..1e22162d 100644
--- a/testing/tests/carddav/2003-PUT-vcard.result
+++ b/testing/tests/carddav/2003-PUT-vcard.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 201 Created
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/carddav/2014-PUT-vcard.result b/testing/tests/carddav/2014-PUT-vcard.result
index 8d0f4a00..fcc35b80 100644
--- a/testing/tests/carddav/2014-PUT-vcard.result
+++ b/testing/tests/carddav/2014-PUT-vcard.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 204 No Content
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/carddav/2016-PUT-vcard.result b/testing/tests/carddav/2016-PUT-vcard.result
index 37a63723..e2a4050f 100644
--- a/testing/tests/carddav/2016-PUT-vcard.result
+++ b/testing/tests/carddav/2016-PUT-vcard.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 201 Created
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/carddav/2017-PUT-vcard.result b/testing/tests/carddav/2017-PUT-vcard.result
index 55551b1a..904e0a7e 100644
--- a/testing/tests/carddav/2017-PUT-vcard.result
+++ b/testing/tests/carddav/2017-PUT-vcard.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 201 Created
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/carddav/2018-PUT-vcard.result b/testing/tests/carddav/2018-PUT-vcard.result
index 535da179..da2a24df 100644
--- a/testing/tests/carddav/2018-PUT-vcard.result
+++ b/testing/tests/carddav/2018-PUT-vcard.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 201 Created
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/ischedule/3050-PUT-with-attendees.result b/testing/tests/ischedule/3050-PUT-with-attendees.result
index fb3acc7b..12f197e8 100644
--- a/testing/tests/ischedule/3050-PUT-with-attendees.result
+++ b/testing/tests/ischedule/3050-PUT-with-attendees.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 ETag: "2f9bb75f51266683f713f8d382a67bff"
diff --git a/testing/tests/ischedule/3051-PUT-with-attendees.result b/testing/tests/ischedule/3051-PUT-with-attendees.result
index bbd9cf6d..e82aa8a8 100644
--- a/testing/tests/ischedule/3051-PUT-with-attendees.result
+++ b/testing/tests/ischedule/3051-PUT-with-attendees.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 ETag: "2f9bb75f51266683f713f8d382a67bff"
diff --git a/testing/tests/regression-suite/0000-Setup-PUT-collection-nz_holidays.result b/testing/tests/regression-suite/0000-Setup-PUT-collection-nz_holidays.result
index eee5f869..57f457d2 100644
--- a/testing/tests/regression-suite/0000-Setup-PUT-collection-nz_holidays.result
+++ b/testing/tests/regression-suite/0000-Setup-PUT-collection-nz_holidays.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0000-Setup-PUT-collection-us_holidays.result b/testing/tests/regression-suite/0000-Setup-PUT-collection-us_holidays.result
index eee5f869..57f457d2 100644
--- a/testing/tests/regression-suite/0000-Setup-PUT-collection-us_holidays.result
+++ b/testing/tests/regression-suite/0000-Setup-PUT-collection-us_holidays.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0000-Setup-PUT-collection-user3-utf8.result b/testing/tests/regression-suite/0000-Setup-PUT-collection-user3-utf8.result
index 4f534d34..67b7eae5 100644
--- a/testing/tests/regression-suite/0000-Setup-PUT-collection-user3-utf8.result
+++ b/testing/tests/regression-suite/0000-Setup-PUT-collection-user3-utf8.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0000-Setup-PUT-collection-user3.result b/testing/tests/regression-suite/0000-Setup-PUT-collection-user3.result
index 9de19173..01b1b57b 100644
--- a/testing/tests/regression-suite/0000-Setup-PUT-collection-user3.result
+++ b/testing/tests/regression-suite/0000-Setup-PUT-collection-user3.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0000-Setup-PUT-collection-user4.result b/testing/tests/regression-suite/0000-Setup-PUT-collection-user4.result
index eee5f869..57f457d2 100644
--- a/testing/tests/regression-suite/0000-Setup-PUT-collection-user4.result
+++ b/testing/tests/regression-suite/0000-Setup-PUT-collection-user4.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0000-Setup-PUT-collection-user5.result b/testing/tests/regression-suite/0000-Setup-PUT-collection-user5.result
index f621d68d..7bb00003 100644
--- a/testing/tests/regression-suite/0000-Setup-PUT-collection-user5.result
+++ b/testing/tests/regression-suite/0000-Setup-PUT-collection-user5.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0000-Setup-PUT-collection-user6.result b/testing/tests/regression-suite/0000-Setup-PUT-collection-user6.result
index 6dc4ce4c..87eae9f2 100644
--- a/testing/tests/regression-suite/0000-Setup-PUT-collection-user6.result
+++ b/testing/tests/regression-suite/0000-Setup-PUT-collection-user6.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0000-Setup-PUT-collection.result b/testing/tests/regression-suite/0000-Setup-PUT-collection.result
index e6a1056e..5176d185 100644
--- a/testing/tests/regression-suite/0000-Setup-PUT-collection.result
+++ b/testing/tests/regression-suite/0000-Setup-PUT-collection.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0104-Evo-PUT-1.result b/testing/tests/regression-suite/0104-Evo-PUT-1.result
index 578d8b36..7172e1aa 100644
--- a/testing/tests/regression-suite/0104-Evo-PUT-1.result
+++ b/testing/tests/regression-suite/0104-Evo-PUT-1.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 201 Created
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0233-Moz-PUT.result b/testing/tests/regression-suite/0233-Moz-PUT.result
index c853092a..b441c3fa 100644
--- a/testing/tests/regression-suite/0233-Moz-PUT.result
+++ b/testing/tests/regression-suite/0233-Moz-PUT.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 201 Created
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0515-iCal-PUT-VEVENT.result b/testing/tests/regression-suite/0515-iCal-PUT-VEVENT.result
index fc8ff9a8..5c201ee8 100644
--- a/testing/tests/regression-suite/0515-iCal-PUT-VEVENT.result
+++ b/testing/tests/regression-suite/0515-iCal-PUT-VEVENT.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 201 Created
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0548-iCal-PROPFIND.result b/testing/tests/regression-suite/0548-iCal-PROPFIND.result
index 870f59c7..b08d7470 100644
--- a/testing/tests/regression-suite/0548-iCal-PROPFIND.result
+++ b/testing/tests/regression-suite/0548-iCal-PROPFIND.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 207 Multi-Status
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0803-Mulberry-PUT-1.result b/testing/tests/regression-suite/0803-Mulberry-PUT-1.result
index e9042fd2..ab92fc13 100644
--- a/testing/tests/regression-suite/0803-Mulberry-PUT-1.result
+++ b/testing/tests/regression-suite/0803-Mulberry-PUT-1.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 207 Multi-Status
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0804-Mulberry-PUT-1.result b/testing/tests/regression-suite/0804-Mulberry-PUT-1.result
index 6d0080e4..7c02dac8 100644
--- a/testing/tests/regression-suite/0804-Mulberry-PUT-1.result
+++ b/testing/tests/regression-suite/0804-Mulberry-PUT-1.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 201 Created
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/regression-suite/0902-PUT-collection.result b/testing/tests/regression-suite/0902-PUT-collection.result
index fbce37f5..2b313fba 100644
--- a/testing/tests/regression-suite/0902-PUT-collection.result
+++ b/testing/tests/regression-suite/0902-PUT-collection.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 200 OK
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/scheduling/3010-PUT-with-attendees.result b/testing/tests/scheduling/3010-PUT-with-attendees.result
index ca01a6bd..65e62b64 100644
--- a/testing/tests/scheduling/3010-PUT-with-attendees.result
+++ b/testing/tests/scheduling/3010-PUT-with-attendees.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 201 Created
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
diff --git a/testing/tests/scheduling/3032-PUT-iCal-with-attendees.result b/testing/tests/scheduling/3032-PUT-iCal-with-attendees.result
index f85a166a..ec71606d 100644
--- a/testing/tests/scheduling/3032-PUT-iCal-with-attendees.result
+++ b/testing/tests/scheduling/3032-PUT-iCal-with-attendees.result
@@ -1,5 +1,3 @@
-HTTP/1.1 100 Continue
-
 HTTP/1.1 204 No Content
 Date: Dow, 01 Jan 2000 00:00:00 GMT
 DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule