Update intersection-observer to version 0.4.0 (#4398)

app/javascript/mastodon/components/status.js

@@ -107,17 +107,12 @@ export default class Status extends ImmutablePureComponent {
       this.height = getRectFromEntry(entry).height;
     }
 
-    // Edge 15 doesn't support isIntersecting, but we can infer it
-    // https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/12156111/
-    // https://github.com/WICG/IntersectionObserver/issues/211
-    const isIntersecting = (typeof entry.isIntersecting === 'boolean') ?
-      entry.isIntersecting : entry.intersectionRect.height > 0;
     this.setState((prevState) => {
-      if (prevState.isIntersecting && !isIntersecting) {
+      if (prevState.isIntersecting && !entry.isIntersecting) {
         scheduleIdleTask(this.hideIfNotIntersecting);
       }
       return {
-        isIntersecting: isIntersecting,
+        isIntersecting: entry.isIntersecting,
         isHidden: false,
       };
     });

package.json

@@ -57,7 +57,7 @@
     "glob": "^7.1.1",
     "http-link-header": "^0.8.0",
     "immutable": "^3.8.1",
-    "intersection-observer": "^0.3.2",
+    "intersection-observer": "^0.4.0",
     "intl": "^1.2.5",
     "intl-relativeformat": "^2.0.0",
     "is-nan": "^1.2.1",

yarn.lock

@@ -3608,9 +3608,9 @@ interpret@^1.0.0:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.0.3.tgz#cbc35c62eeee73f19ab7b10a801511401afc0f90"
 
-intersection-observer@^0.3.2:
-  version "0.3.2"
-  resolved "https://registry.yarnpkg.com/intersection-observer/-/intersection-observer-0.3.2.tgz#9ed30021c08b29e9e8565c8d512ed84515727433"
+intersection-observer@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/intersection-observer/-/intersection-observer-0.4.0.tgz#e7c3580be96fc1698170250b500da986c59824fb"
 
 intl-format-cache@^2.0.5:
   version "2.0.5"