^/editabled/.*\.html$ stops working when crossOriginIsolated

[DDR0]

in ./site-config/ddr0, setting

add_header Cross-Origin-Opener-Policy "same-origin";
add_header Cross-Origin-Embedder-Policy "require-corp";

sets crossOriginIsolated to true on the web page and breaks Editabled because, presumably, SharedArrayBuffers are now available which it uses before falling back to copying memory around when passing messages back and forth to the worker.