luci-base: cbi.js: avoid double-initialization of dropdowns

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 3 insertions, 0 deletions

diff --git a/modules/luci-base/htdocs/luci-static/resources/cbi.js b/modules/luci-base/htdocs/luci-static/resources/cbi.js
index 2dba54750..92c41515f 100644
--- a/modules/luci-base/htdocs/luci-static/resources/cbi.js
+++ b/modules/luci-base/htdocs/luci-static/resources/cbi.js
@@ -731,6 +731,9 @@ if (typeof(window.CustomEvent) !== 'function') {
 }
 
 function cbi_dropdown_init(sb) {
+	if (sb && L.dom.findClassInstance(sb) instanceof L.ui.Dropdown)
+		return;
+
 	var dl = new L.ui.Dropdown(sb, null, { name: sb.getAttribute('name') });
 	return dl.bind(sb);
 }