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-rw-r--r--js/App.js11
1 files changed, 6 insertions, 5 deletions
diff --git a/js/App.js b/js/App.js
index e19b3e878..649571593 100644
--- a/js/App.js
+++ b/js/App.js
@@ -688,15 +688,16 @@ const App = {
checkBrowserFeatures: function() {
let errorMsg = "";
- ['MutationObserver'].forEach(function(wf) {
- if (!(wf in window)) {
- errorMsg = `Browser feature check failed: <code>window.${wf}</code> not found.`;
+ ['MutationObserver', 'requestIdleCallback'].forEach((t) => {
+ if (!(t in window)) {
+ errorMsg = `Browser check failed: <code>window.${t}</code> not found.`;
throw new Error(errorMsg);
}
});
- if (errorMsg) {
- this.Error.fatal(errorMsg, {info: navigator.userAgent});
+ if (typeof Promise.allSettled == "undefined") {
+ errorMsg = `Browser check failed: <code>Promise.allSettled</code> is not defined.`;
+ throw new Error(errorMsg);
}
return errorMsg == "";