Additional fixes for iframe validation exploits. Prevent exploits based on browsers' tolerance of the use of "\" rather than "/" and the presence of whitespace at this point in the URL. Thanks to Ron Masas of Checkmarx for pointing out the issue and writing unit tests.
Updates README yarn add syntax. Thanks to Tagir Khadshiev for the contribution.
Uses the standard WHATWG URL parser to stop IDNA (Internationalized Domain Name) attacks on the iframe hostname validator. Thanks to Ron Masas of Checkmarx for pointing out the issue and suggesting the use of the WHATWG parser.
Upgrade is-plain-object package with named export. Thanks to Bogdan Chadkin for the contribution.
Upgrade postcss package and drop Node 11 and Node 13 support (enforced by postcss).
Backwards compatibility breaks:
There is no build. You should no longer directly link to a sanitize-html file directly in the browser as it is using modern Javascript that is not fully supported by all major browsers (depending on your definition). You should now include sanitize-html in your project build for this purpose if you have one.
On the server side, Node.js 10 or higher is required.
The default allowedTags array was updated significantly. This mostly added HTML tags to be more comprehensive by default. You should review your projects and consider the allowedTags defaults if you are not already overriding them.
Adds the allowedIframeDomains option. This works similar to allowedIframeHostnames, where you would set it to an array of web domains. It would then permit any hostname on those domains to be used in iframe src attributes. Thanks to Stanislav Kravchenko for the contribution.
Renovate configuration
Schedule: "on the 1st through 7th day of the month" in timezone America/Los_Angeles.
Automerge: Disabled by config. Please merge this manually once you are satisfied.
Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
Ignore: Close this PR and you won't be reminded about this update again.
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