diff --git a/unpacked/jax/output/CommonHTML/jax.js b/unpacked/jax/output/CommonHTML/jax.js
index f110fe42e..7acf1eae0 100644
--- a/unpacked/jax/output/CommonHTML/jax.js
+++ b/unpacked/jax/output/CommonHTML/jax.js
@@ -744,6 +744,10 @@
     getCharList: function (variant,n) {
       var id, M, list = [], cache = variant.cache, nn = n;
       if (cache[n]) return cache[n];
+      if (n > 0xFFFF && this.FONTDATA.RemapPlane1) {
+        var nv = this.FONTDATA.RemapPlane1(n,variant);
+        n = nv.n; variant = nv.variant;
+      }
       var RANGES = this.FONTDATA.RANGES, VARIANT = this.FONTDATA.VARIANT;
       if (n >= RANGES[0].low && n <= RANGES[RANGES.length-1].high) {
         for (id = 0, M = RANGES.length; id < M; id++) {