If there are questions about how to add those headers at Netlify, please let us know and we will assist with that. So, we need you to tell us what the best access control headers are. In the same way we wonât design your page layout for you, we also cannot tell you which access control headers are âbest for your siteâ. This line will match and also .com (A domain anyone can create) A banner makes users open. The answer above is opening a security vulnerability. It would be the same question with any hosting but it isnât a question about the hosting itself. Setting 'Access-Control-Allow-Origin' based on conditions in nginx is very dangerous and you should be careful. For example, if you wanted to know what a good page layout for your site was, that is a design question and not a question about Netlify. Netlifyâs support team does have the resources to answer questions that are not specific to Netlify. Whether or not you host the site at Netlify, it doesnât impact the answer in either way. That is a question about access control headers in general. In other words, that isnât a question about Netlify. That question is the same question regardless of which hosting platform you use. How to specify Access-Control-Allow-Origin in _headers of for multiple (sub)domains? I have a few (sub)domains: If there are other questions about this, please let us know. The only workaround for this at this time would be to deploy to multiple sites and use a different header rule for each site which matches only the custom domain for that site. Coming to the CORS issue, a wildcard subdomain is not valid in the context. This will add both domains comma separated but web browsers wonât properly use that header. First off, IIRC express documentation explicitly asks you not to use lambda expression for the middlewares. You can make a âmultiple domainâ Access-Control-Allow-Origin header like so: ] Our header rules will allow you to add multiple domain names to the header, but browsers wonât accept those additional domain names. It also isnât possible to define more than a single domain name for the Access-Control-Allow-Origin header (with the exception of the â*â option). This header is returned by a server when a website requests a cross-domain resource, with an Origin header added by the browser. For the example you have given, only one of those rules will apply. The CORS specification identifies a collection of protocol headers of which Access-Control-Allow-Origin is the most significant. If you only want to accept CORS requests from. The above line will allow Apache to accept requests from all other domains. Header set Access-Control-Allow-Origin ''. So yes, you need to set the header differently depending on what domain is requesting the site. To set Access-Control-Allow-Origin header in Apache, just add the following line inside either the , , or sections of your file.If ($http_origin ~ '^http*?://(foo\.bar|.+\.foo\.bar|fou\.baar|.+\.fou\.Hi, There isnât a way to make header rules specific to a domain at Netlify. As stated by the CORS spec, you can have only one domain in the Access-Control-Allow-Origin header (or or null). # Extend the list of XSS-whilelisted domains by adding more Still has some places to polish, but I'm using it. And is especially nicer for not using wildcards. Well, you received one answer already - better than nothing, but in my opition it's code can only be used as initial iteration.Ĭode below, which I'm not the original author of (which was found as a gist on GitHub), is way better at nandling CORS.
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