Support for Cloudflare Workers for javascript_stir (#1401)

* Support for Cloudflare Workers for javascript_stir

* Ramove debugging comment

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Co-authored-by: Frank Denis <124872+jedisct1@users.noreply.github.com>

src/libsodium/randombytes/randombytes.c

@@ -89,6 +89,7 @@ randombytes_stir(void)
             try {
                 var window_ = 'object' === typeof window ? window : self;
                 var crypto_ = typeof window_.crypto !== 'undefined' ? window_.crypto : window_.msCrypto;
+                crypto_ = (crypto_ === undefined) ? crypto : crypto_;
                 var randomValuesStandard = function() {
                     var buf = new Uint32Array(1);
                     crypto_.getRandomValues(buf);