Fix #438, fix raf call in Firefox extenstion context

RAF call needs to have Window object bound as `this`.

CHANGELOG.md

@@ -2,16 +2,22 @@
 
 ## Unreleased
 
-- Fixed merge-props adding `:class` property to result even if no argument
-defined `:class` ([#479](https://github.com/reagent-project/reagent/pull/479))
-- Fix using `:className` property together with keyword class shortcut ([#433](https://github.com/reagent-project/reagent/issues/433))
-- Fix incorrect missing React key warnings with `:>` ([#399](https://github.com/reagent-project/reagent/issues/399))
+### Features and changes
+
 - Change RAtom (all types) print format to be readable using ClojureScript reader,
 similar to normal Atom ([#439](https://github.com/reagent-project/reagent/issues/439))
     - Old print output: `#<Atom: 0>`
     - New print output: `#object[clojure.ratom.RAtom {:val 0}]`
     - Still not readable by default, requires custom reader for `object` tag.
 
+### Bugfixes
+
+- Fixed merge-props adding `:class` property to result even if no argument
+defined `:class` ([#479](https://github.com/reagent-project/reagent/pull/479))
+- Fix using `:className` property together with keyword class shortcut ([#433](https://github.com/reagent-project/reagent/issues/433))
+- Fix incorrect missing React key warnings with `:>` ([#399](https://github.com/reagent-project/reagent/issues/399))
+- Fix `requestAnimationFrame` call in Firefox extension context ([#438](https://github.com/reagent-project/reagent/issues/438))
+
 ## 0.10.0 (2020-03-06)
 
 Main feature of this release is to deprecate functions that are going to be

src/reagent/impl/batching.cljs

@@ -14,14 +14,15 @@
   (js/setTimeout f 16))
 
 (def next-tick
-  (if-not is-client
-    fake-raf
-    (let [w js/window]
-      (or (.-requestAnimationFrame w)
-          (.-webkitRequestAnimationFrame w)
-          (.-mozRequestAnimationFrame w)
-          (.-msRequestAnimationFrame w)
-          fake-raf))))
+  (.bind (if-not is-client
+           fake-raf
+           (let [w js/window]
+             (or (.-requestAnimationFrame w)
+                 (.-webkitRequestAnimationFrame w)
+                 (.-mozRequestAnimationFrame w)
+                 (.-msRequestAnimationFrame w)
+                 fake-raf)))
+         js/window))
 
 (defn compare-mount-order
   [^clj c1 ^clj c2]