Skip to content

Fix TypeError when receiving messages without action property #64

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

Open
ErkoRisthein wants to merge 3 commits into
base: main
Choose a base branch
from
+67 −1
Open

Fix TypeError when receiving messages without action property #64

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
2eebf2a
Fix TypeError when receiving messages without action property
ErkoRisthein Dec 11, 2025
2898b3f
Address code review feedback: add explicit assertions to tests
ErkoRisthein Dec 11, 2025
48a5149
Fix TypeError for non-string action values in postMessage handler
ErkoRisthein Jan 6, 2026
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
2 changes: 1 addition & 1 deletion src/services/WebExtensionService.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -44,7 +44,7 @@ export default class WebExtensionService {
}

private receive(event: { data: ExtensionResponse }): void {
if (!event.data?.action.startsWith("web-eid:")) return;
if (!event.data?.action?.startsWith("web-eid:")) return;

const message = event.data;
const suffix = ["success", "failure", "ack"].find((s) => message.action.endsWith(s));
Expand Down
17 changes: 17 additions & 0 deletions src/services/__tests__/WebExtensionService-test.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,23 @@ describe("WebExtensionService", () => {
jest.restoreAllMocks();
});

describe("receive", () => {
it("should ignore messages with data but no action property", async () => {
window.postMessage({ someOtherProperty: "value" }, "*");
await new Promise((resolve) => setTimeout(resolve));
});

it("should ignore messages with null data", async () => {
window.postMessage(null, "*");
await new Promise((resolve) => setTimeout(resolve));
});

it("should ignore messages with undefined data", async () => {
window.postMessage(undefined, "*");
await new Promise((resolve) => setTimeout(resolve));
});
});

describe("action web-eid:warning", () => {
it("should log a warning from web-eid:warning message", async () => {
jest.spyOn(console, "warn").mockImplementation();
Expand Down