XMLHttpRequest: fix a bug where Access-Control-Allow-Origin: * was not handled correctly#1098
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rbri merged 1 commit intoHtmlUnit:masterfrom Mar 12, 2026
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@duonglaiquang any chance to have a test for this? |
…not handled correctly
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@rbri i have added a test could you take a look |
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Thanks a lot |
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This PR does the following
Addresses CORS preflight handling in HtmlUnit by correcting the
isPreflightAuthorizedmethod inXMLHttpRequestto properly recognize the wildcard*value for theAccess-Control-Allow-Headersresponse header.Problem
When a server responds to a CORS preflight request with
Access-Control-Allow-Headers: *, HtmlUnit does not recognize this as a wildcard. Instead, it treats*as a literal header name and adds it to the set of allowed header names. This causes the preflight authorization check to fail for any non-simple headers, even though the server intended to allow all of them.