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  • Nikhil 54 posts 166 karma points
    Mar 04, 2020 @ 10:22
    Nikhil
    0

    Umbraco v8 - Breaks when "Content-Security-Policy" is added to web.config. Require an acceptable policy.

    Using Umbraco And Getting Started
    Umbraco 8

    I added:

    <add name="Content-Security-Policy" value="default-src 'self'; script-src 'self' https://cdnjs.cloudflare.com; style-src 'self' 'unsafe-inline' https://stackpath.bootstrapcdn.com https://cdnjs.cloudflare.com; style-src-elem 'self' 'unsafe-inline' https://stackpath.bootstrapcdn.com https://cdnjs.cloudflare.com; font-src 'self' https://stackpath.bootstrapcdn.com https://cdnjs.cloudflare.com;" />

    I had to add 'unsafe-inline' which defeats the whole purpose.

    Umbraco v8 would not work as a lot of cdn content is used in Umbraco.

    Is there any acceptable "Content-Security-Policy" for Umbraco v8 that works?

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  • Jeavon Leopold 3072 posts 13628 karma points MVP 10x admin c-trib
    Mar 04, 2020 @ 12:59
    Jeavon Leopold
    0

    Either create a different policy for the Umbraco path or don't have a CSP for the umbraco path at all.

    e.g.

    <location path="umbraco">
    <system.webServer>
        <urlCompression doStaticCompression="false" doDynamicCompression="false" dynamicCompressionBeforeCache="false" />
        <httpProtocol>
            <customHeaders>
                <remove name="Content-Security-Policy" />
            </customHeaders>
        </httpProtocol>
    </system.webServer>
</location>
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