The main-world bridge is appended at document_start, which often runs
before the page has an <html> element. The append threw on null, and the
catch marked the origin as Trusted-Types-blocked in localStorage, so every
later visit skipped window.ethereum, window.solana and the EIP-6963
announcement on that site. On example.com it failed on 6 of 6 loads.
Wait for <html> with a MutationObserver (it fires at the microtask
checkpoint before the first parser-inserted script, so the bridge is still
first), remember only real Trusted Types refusals, and use a new key so the
origins wrongly marked by the old one get the bridge back.
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