lsp-javascript typescript typescript-language-server > 1.2.0 hover -> nothing in echo area

Thank you for the bug report

[X] I am using the latest version of lsp-mode related packages.
[X] I checked FAQ and Troubleshooting sections
[ ] You may also try reproduce the issue using clean environment using the following command: M-x lsp-start-plain

Bug description

When using a version of typescript-language-server above 1.2.0, when hovering a symbol, it is not shown in the ~minibuffer~ echo area.

I've done some debugging, and found a difference in the response w.r.t. textDocument/hover:

With @1.2.0

[Trace - 05:03:56 ] Received response 'textDocument/hover - (284)' in 28ms.
Result: {
  "contents": [
    {
      "language": "typescript",
      "value": "(alias) interface CaptchaConfig\nimport CaptchaConfig"
    },
    ""
  ],
  "range": {
    "start": {
      "line": 11,
      "character": 11
    },
    "end": {
      "line": 11,
      "character": 24
    }
  }
}

With @3.3.0

[Trace - 05:06:41 ] Received response 'textDocument/hover - (333)' in 67ms.
Result: {
  "contents": {
    "kind": "markdown",
    "value": "\n```typescript\n(alias) interface CaptchaConfig\nimport CaptchaConfig\n```\n"
  },
  "range": {
    "start": {
      "line": 11,
      "character": 11
    },
    "end": {
      "line": 11,
      "character": 24
    }
  }
}

So the data structure for content is quite different, probably causing it not to display at all.

Newer version also is in markdown format -> maybe this is a setting?

Steps to reproduce

Install a version of typescript-language-server above 1.2.0, for instance yarn global add typescript-language-server@3.3.0

Open typescript project, hover a symbol.

Expected behavior

To get the info returned in hover action shown in the echo area.

Which Language Server did you use?

lsp-javascript / ts-ls / typescript-language-server

OS

Linux

Error callstack

No response

Anything else?

No response

emacs-lsp / lsp-mode