Skip to content

fix(router): type cast correctly for IE 11 bug breaking URL Unificati… #30464

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
jasonaden wants to merge 1 commit into from
Closed

fix(router): type cast correctly for IE 11 bug breaking URL Unificati… #30464

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 7 additions & 4 deletions packages/router/src/utils/collection.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -21,10 +21,13 @@ export function shallowEqualArrays(a: any[], b: any[]): boolean {
}

export function shallowEqual(a: {[x: string]: any}, b: {[x: string]: any}): boolean {
const k1 = Object.keys(a);
const k2 = Object.keys(b);
// IE 11 sometimes returns an `undefined` value here. This guard is for IE 11 only.
if (!(k1 || k2) || k1.length != k2.length) {
// Casting Object.keys return values to include `undefined` as there are some cases
// in IE 11 where this can happen. Cannot provide a test because the behavior only
// exists in certain circumstances in IE 11, therefore doing this cast ensures the
// logic is correct for when this edge case is hit.
const k1 = Object.keys(a) as string[] | undefined;
const k2 = Object.keys(b) as string[] | undefined;
if (!k1 || !k2 || k1.length != k2.length) {
return false;
}
let key: string;
Expand Down