avoid modifying settings['headers'] in add_default_headers #2671
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
Use a copy to avoid writing content security policy into settings['headers'], which can be a problem because APIHandlers have a stricter CSP than page handlers. If an API request is made before the first page request, pages will fail to load due to CSP violations.
|
Seems straightforward, thanks. |
Sign up for free
to subscribe to this conversation on GitHub.
Already have an account?
Sign in.
2 participants
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Outdated suggestions cannot be applied.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.
Use a copy to avoid writing content security policy into settings['headers'], which can be a problem because APIHandlers have a stricter CSP than page handlers, adding
default-src: 'none'.If an API request is made before the first page request, pages would fail to load due to CSP violations because the API CSP would be saved in
settings['headers']and used for all subsequent requests.cc @tkinz27 @kalvinnchau who reported this on Gitter