3 ms·
As good as a script element with type application/json.
by yuchi 1y ago
As good as a script element with type application/json.
- alserio 1y agowell one difference is that application/json scripts are still subject to CSP policies
- unilynx 1y agoHow so? I don't remember ever having seen issues with this. If anything CSP steers you towards this (instead of inline scripts directly assigning to JS variables)
- alserio 1y agoI thought I knew but it seems that the CSP story is unclear. I couldn't find an authoritative source for either position
- SahAssar 1y agoCSP blocks execution/inclusion, but since json does not execute and any json mimetype will not do execution there is no problem. Any CSP-allowed other script can read that application/json script tag and decode it, but it is no different than reading any other data it has access to like any other html element or attribute.
- alserio 1y agoThat makes sense, thank you
- joeframbach 1y agoI wonder if the browser would attempt to validate the contents of a script tag with type json, versus treating it as a blob that would only be validated when parsed/used. And any performance overhead at load time for doing so. Not at a machine at the moment so I can't verify.