add divide

Author: chrisj

src/ui/url_hash_binding.ts

@@ -129,7 +129,7 @@ export class UrlHashBinding extends RefCounted {
       if (stateString !== this.prevStateString) {
         this.prevStateString = stateString;
         const userFunc = this.viewer.urlHashRateLimit.value;
-        const safeFunc = /^[x *\+\-\d\(\)le]*$/;
+        const safeFunc = /^[x */\+\-\d\(\)le]*$/;
         if (safeFunc.test(userFunc)) {
           const translatedFunc = userFunc
             .replaceAll("l", "Math.log")