Do not freeze RegExp.

For some reason, recent Firefox prevent using frozen regexp.

bin/uritemplate-min.js

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\ No newline at end of file
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p=r.isArray(s),f=[];return p?(f=s,f=r.filter(f,t),f=r.map(f,function(t){var r=a.encodeLiteral(e.varname);return r+=n(t)?o.ifEmpty:"="+o.encode(t)})):(f=i(s),f=r.filter(f,u),f=r.map(f,function(e){var t=a.encodeLiteral(e.name);return t+=n(e.value)?o.ifEmpty:"="+o.encode(e.value)})),r.join(f,o.separator)}function l(e,n){var o=[],s="";return r.isArray(n)?(o=n,o=r.filter(o,t),o=r.map(o,e.encode),s+=r.join(o,e.separator)):(o=i(n),o=r.filter(o,function(e){return t(e.value)}),o=r.map(o,function(t){return e.encode(t.name)+"="+e.encode(t.value)}),s+=r.join(o,e.separator)),s}return o.prototype.toString=function(){return this.templateText},o.prototype.expand=function(i){var o,a,u,c,h=[],d=!1,g=this.operator;for(o=0;o<this.varspecs.length;o+=1)if(a=this.varspecs[o],u=i[a.varname],null!==u&&void 0!==u)if(a.exploded&&(d=!0),c=r.isArray(u),"string"==typeof u||"number"==typeof u||"boolean"==typeof u)h.push(s(a,g,u));else{if(a.maxLength&&t(u))throw new Error("Prefix modifiers are not applicable to 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\ No newline at end of file

bin/uritemplate.js

@@ -92,7 +92,7 @@ var objectHelper = (function () {
             if (object.hasOwnProperty(propertyName)) {
                 property = object[propertyName];
                 // be aware, arrays are 'object', too
-                if (typeof property === "object") {
+                if ((typeof property === "object") && !(property instanceof RegExp)) {
                     deepFreeze(property);
                 }
             }

src/objectHelper.js

@@ -66,7 +66,7 @@ var objectHelper = (function () {
             if (object.hasOwnProperty(propertyName)) {
                 property = object[propertyName];
                 // be aware, arrays are 'object', too
-                if (typeof property === "object") {
+                if ((typeof property === "object") && !(property instanceof RegExp)) {
                     deepFreeze(property);
                 }
             }