x-www-form-urlencoded key error when data has an array

[luoyuhao0x58]

Reproduction Link

https://jsfiddle.net/b2e111pm/

Steps to reproduce

MacOS: 10.13.1 Chrome: 62.0.3202.94 vue-resource: 1.3.4

What is Expected?

response data must be

{
"form": {
    "id": [
      "1",
      "2"
    ]
  }
}

What is actually happening?

{
"form": {
    "id[]": [
      "1",
      "2"
    ]
  }
}

key need to be "id", not "id[]"

[stepli1010]

same to you

[wtl1019]

same question