url as path in the resolveId function of a plugin is broken from beta 51

[gawlk]

Hi !

This code worked in beta 50 and less:

resolveId(id) {
            if (id.startsWith('/cdn/')) {
                id = id.substring(5)
                return (
                    `${base}${prefix}${id}` +
                    (locked[id] ? `@${locked[id]}` : '') +
                    postfix
                )
            }
        },

but doesn't from beta 51

It throughs this error:

error when starting dev server:
Error: Build failed with 1 error:
html:/Users/k/code/vue/n/src/pages/Index.vue:2:22: error: Could not read from file: /Users/k/code/vue/n/https:/cdn.skypack.dev/jssha
    at failureErrorWithLog (/Users/k/code/vue/n/node_modules/esbuild/lib/main.js:969:15)
    at buildResponseToResult (/Users/k/code/vue/n/node_modules/esbuild/lib/main.js:767:32)
    at /Users/k/code/vue/n/node_modules/esbuild/lib/main.js:819:20
    at handleIncomingPacket (/Users/k/code/vue/n/node_modules/esbuild/lib/main.js:566:9)
    at Socket.readFromStdout (/Users/k/code/vue/n/node_modules/esbuild/lib/main.js:482:7)
    at Socket.emit (node:events:379:20)
    at addChunk (node:internal/streams/readable:313:12)
    at readableAddChunk (node:internal/streams/readable:288:9)
    at Socket.Readable.push (node:internal/streams/readable:227:10)
    at Pipe.onStreamRead (node:internal/stream_base_commons:190:23)

Should I change something or is a regression bug ?

Thank you