TypeError: require_elliptic2(...) is not a function

[achingbrain]

When using the secp256k1 module this line seems to trip esbuild@0.11.15 up.

The problem seems to have appeared in esbuild@0.11.9 - that is, no error is present in esbuild@0.11.8.

Repro repo: https://github.com/achingbrain/esbuild-secp256k1

[evanw]

Sorry about this. This is due to some changes in the interpretation of the browser field to try to accept some strange path remappings that are accepted by Browserify but not by other bundlers. I believe these strange remappings only work in Browserify due to a Browserify bug, but I'm still working on confirming this (browserify/browserify#1994). There is unfortunately no specification for the browser field (this is commonly referenced but does not have nearly enough detail to actually implement the feature) so I have been trying to periodically adjust esbuild's implementation as I become aware of new test cases. I thought the rule that Browserify was using was something like "strip all leading ./ before comparison" but clearly that's not the case either. I'll try to adjust esbuild's rules again to incorporate this test case too.