diff --git a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/FoundationFull.bridgesupport.extras b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/FoundationFull.bridgesupport.extras
index 50606c1..3f0f40b 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/FoundationFull.bridgesupport.extras
+++ b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/FoundationFull.bridgesupport.extras
@@ -511,6 +511,11 @@
 			<arg swt_gen="true"></arg>
 			<retval swt_gen="true"></retval>
 		</method>
+		<method selector="setValue:forHTTPHeaderField:" swt_gen="true">
+			<arg swt_gen="true"></arg>
+			<arg swt_gen="true"></arg>
+			<retval swt_gen="true"></retval>
+		</method>
 	</class>
 	<class name="NSNotification" swt_gen="mixed">
 		<method selector="object" swt_gen="true">
diff --git a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/NSMutableURLRequest.java b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/NSMutableURLRequest.java
index 942b0e6..81af307 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/NSMutableURLRequest.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/NSMutableURLRequest.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2019 IBM Corporation and others.
+ * Copyright (c) 2000, 2020 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -43,6 +43,10 @@
 	OS.objc_msgSend(this.id, OS.sel_setURL_, URL != null ? URL.id : 0);
 }
 
+public void setValue(NSString value, NSString field) {
+	OS.objc_msgSend(this.id, OS.sel_setValue_forHTTPHeaderField_, value != null ? value.id : 0, field != null ? field.id : 0);
+}
+
 public static NSMutableURLRequest requestWithURL(NSURL URL) {
 	long result = OS.objc_msgSend(OS.class_NSMutableURLRequest, OS.sel_requestWithURL_, URL != null ? URL.id : 0);
 	return result != 0 ? new NSMutableURLRequest(result) : null;
diff --git a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/OS.java b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/OS.java
index 87c1be1..2b48e32 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/OS.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/OS.java
@@ -1874,6 +1874,7 @@
 public static final long sel_setUsesScreenFonts_ = Selector.sel_setUsesScreenFonts_.value;
 public static final long sel_setUsesSingleLineMode_ = Selector.sel_setUsesSingleLineMode_.value;
 public static final long sel_setUsesThreadedAnimation_ = Selector.sel_setUsesThreadedAnimation_.value;
+public static final long sel_setValue_forHTTPHeaderField_ = Selector.sel_setValue_forHTTPHeaderField_.value;
 public static final long sel_setValue_forKey_ = Selector.sel_setValue_forKey_.value;
 public static final long sel_setValueWraps_ = Selector.sel_setValueWraps_.value;
 public static final long sel_setValues_forParameter_ = Selector.sel_setValues_forParameter_.value;
diff --git a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/Selector.java b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/Selector.java
index e40b81c..f0b28d7 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/Selector.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/Selector.java
@@ -1157,6 +1157,7 @@
 	, sel_setUsesScreenFonts_("setUsesScreenFonts:")
 	, sel_setUsesSingleLineMode_("setUsesSingleLineMode:")
 	, sel_setUsesThreadedAnimation_("setUsesThreadedAnimation:")
+	, sel_setValue_forHTTPHeaderField_("setValue:forHTTPHeaderField:")
 	, sel_setValue_forKey_("setValue:forKey:")
 	, sel_setValueWraps_("setValueWraps:")
 	, sel_setValues_forParameter_("setValues:forParameter:")