Update index.js #339
Open
Update index.js #339
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Setting Vary: Origin Header for All Requests:
The res.setHeader('Vary', 'Origin') line ensures that every response includes the Vary: Origin header, regardless of whether it's a CORS or non-CORS request.
//CORS Middleware for Requests with Origin:
The dynamic cors middleware is applied only if the originCallback function validates the origin.
//Non-CORS Requests:
For requests without the Origin header, the middleware still sets the Vary: Origin header and proceeds without invoking the cors middleware.
|
Differentiating in cors-request and non-cors request |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Setting Vary: Origin Header for All Requests:
The res.setHeader('Vary', 'Origin') line ensures that every response includes the Vary: Origin header, regardless of whether it's a CORS or non-CORS request.
//CORS Middleware for Requests with Origin:
The dynamic cors middleware is applied only if the originCallback function validates the origin.
//Non-CORS Requests:
For requests without the Origin header, the middleware still sets the Vary: Origin header and proceeds without invoking the cors middleware.