Fix websocket polling trigger (#1903)

fix websocket polling trigger

2 files changed, 13 insertions, 1 deletions

diff --git a/src/ext/ws.js b/src/ext/ws.js
index afd82995..3366e9e5 100644
--- a/src/ext/ws.js
+++ b/src/ext/ws.js
@@ -379,7 +379,7 @@ This extension adds support for WebSockets to htmx.  See /www/extensions/ws.md f
 
 				socketWrapper.send(body, elt);
 
-				if (api.shouldCancel(evt, elt)) {
+				if (evt && api.shouldCancel(evt, elt)) {
 					evt.preventDefault();
 				}
 			});
diff --git a/test/ext/ws.js b/test/ext/ws.js
index 96de6009..7e6f140d 100644
--- a/test/ext/ws.js
+++ b/test/ext/ws.js
@@ -172,6 +172,18 @@ describe("web-sockets extension", function () {
         this.messages.length.should.equal(1);
     })
 
+    it('sends data to the server with polling trigger', function () {
+        var div = make('<div hx-ext="ws" ws-connect="ws://localhost:8080"><div hx-trigger="every 1s" ws-send id="d1">div1</div></div>');
+        this.tickMock();
+        this.clock.tick(2000);
+
+        byId("d1").click();
+
+        this.tickMock();
+
+        this.messages.length.should.equal(2);
+    })
+
     it('sends expected headers to the server', function () {
         var div = make('<div hx-ext="ws" ws-connect="ws://localhost:8080"><button hx-trigger="click" hx-target="#target" ws-send id="d1" name="d1-name">div1</button><output id="target"></output></div>');
         this.tickMock();