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-rw-r--r--modules/luci-base/htdocs/luci-static/resources/cbi.js3
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 b285ee26cc..5790e303dd 100644
--- a/modules/luci-base/htdocs/luci-static/resources/cbi.js
+++ b/modules/luci-base/htdocs/luci-static/resources/cbi.js
@@ -1300,6 +1300,9 @@ String.prototype.format = function()
var quot_esc = [/"/g, '"', /'/g, '''];
function esc(s, r) {
+ if (typeof(s) !== 'string' && !(s instanceof String))
+ return '';
+
for( var i = 0; i < r.length; i += 2 )
s = s.replace(r[i], r[i+1]);
return s;