Describe the bug
When bundling yaml for the browser using rollup, I get a circular dependency error. This seems to be a quirk (maybe even a bug?) of the way rollup builds for the browser. A small tweak seems to solve the problem.

Change this,

import * as YAML from './dist/index.js'

to this,

import * as YAML from '../browser/dist/index.js'

To Reproduce
Here's a minimal reproduction.

package.json

{
  "scripts": {
    "build": "rollup -c"
  },
  "dependencies": {
    "@rollup/plugin-commonjs": "^19.0.0",
    "@rollup/plugin-node-resolve": "^13.0.0",
    "rollup": "^2.52.4",
    "yaml": "^2.0.0-6"
  }
}

rollup.config.js

const { nodeResolve } = require("@rollup/plugin-node-resolve");
const commonjs = require("@rollup/plugin-commonjs");


module.exports = {
  input: "index.js",
  output: {
    format: "iife",
    file: "dist.js",
    name: "Test",
    exports: "auto"
  },
  plugins: [
    nodeResolve({
      browser: true
    }),
    commonjs(),
  ]
};

index.js

const YAML = require("yaml");
  
const data = YAML.parse(`foo: bar`);
console.log(data);

Run rollup with npm run build. You should see the circular dependency error. Make the change suggested above (or a better one if it exists) and the error goes away and you can run the bundled app with node dist.js.