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Compiler config parsing is currently done with new Function(...) which is a XSS vulnerability. Replacing this with json parsing for safety reasons. Almost all compiler options (except for moduleTypeProvider) are json compatible, so this isn't a big change to capabilities. Previously created playground URLs with non-default configs may not be compatible with this change, but we should be able to get the correct config manually (by reading the JS version)
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Seems like there's some test errors, accepting to unblock |
EugeneChoi4
approved these changes
Mar 27, 2026
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Compiler config parsing is currently done with new Function(...) which is a XSS vulnerability. Replacing this with json parsing for safety reasons.
Almost all compiler options (except for moduleTypeProvider) are json compatible, so this isn't a big change to capabilities. Previously created playground URLs with non-default configs may not be compatible with this change, but we should be able to get the correct config manually (by reading the JS version)