fix(frontend): origin address info leak #2709
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Currently, frontend loads device images from third-party domain https://www.zigbee2mqtt.io/, leaking potentially sensitive information, as the address might be externally routable IPv6 address, etc. We need to remove crossorigin="anonymous" to stop sending Origin header, and add referer="no-referer" referrer policy to stop sending Origin header. Note that as <image> elements don't support refererpolicy attribute, we have to add document-wide policy. Which is a good idea, as it also prevents leaks when following links.
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Currently, frontend loads device images from third-party domain https://www.zigbee2mqtt.io/, leaking potentially sensitive information, as the address might be externally routable IPv6 address, etc.
We need to remove
crossorigin="anonymous"to stop sending Origin header, and addreferer="no-referer"referrer policy to stop sending Origin header. Note that as<image>elements don't support refererpolicy attribute, we have to add document-wide policy. Which is a good idea, as it also prevents leaks when following links.Fixes #2708