Yarn: `fichier tar non valide` lors de l'installation d'un fichier non tar

$ fil --version
0,17.8

Vous souhaitez demander une fonctionnalité ou signaler un bug ?
bug de fonctionnalité ou de compatibilité (avec bower)

Quel est le comportement actuel ?
L'ajout de cette dépendance à bower.json et l'exécution de bower install fonctionnent correctement :

    "open-sans": "http://themes.googleusercontent.com/static/fonts/opensans/v6/cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff"

Une tentative similaire avec package.json échoue avec :

error An unexpected error occurred: "http://themes.googleusercontent.com/static/fonts/opensans/v6/cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff: invalid tar file".

Si le comportement actuel est un bogue, veuillez fournir les étapes à reproduire.
Cela devrait faire l'affaire :
yarn add http://themes.googleusercontent.com/static/fonts/opensans/v6/cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

Quel est le comportement attendu ?
Je m'attends au même comportement que bower - c'est-à-dire que je récupère le fichier de police dans un répertoire local, de préférence avec un nom raisonnable dans le chemin.

Veuillez mentionner votre node.js, votre fil et la version de votre système d'exploitation.
fichier fil-error.log (édité manuellement pour des raisons de confidentialité) :

Arguments: 
  /home/maxw/.nvm/versions/node/v6.9.1/bin/node /home/maxw/.nvm/versions/node/v6.9.1/bin/yarn add http://themes.googleusercontent.com/static/fonts/opensans/v6/cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

PATH: 
  /home/maxw/.nvm/versions/node/v6.9.1/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

Yarn version: 
  0.17.8

Node version: 
  6.9.1

Platform: 
  linux x64

npm manifest: 
  {
    "name": "irrelevant",
    "version": "0.0.0",
    "main": "tour.html",
    "repository": "[email protected]:irrelevant_dev/irrelevant",
    "author": "Max Waterman",
    "license": "UNLICENSED",
    "dependencies": {
      "Polymer": "^1.6.1--",
      "modernizr": "^3.3.1",
      "webcomponentsjs": "^1.0.2",
      "open-sans": "http://themes.googleusercontent.com/static/fonts/opensans/v6/cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff"
    },
    "resolutions": {}
  }

yarn manifest: 
  No manifest

Lockfile: 
  # THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
  # yarn lockfile v1


  Polymer@^1.6.1--:
    version "1.6.1--"
    resolved "https://registry.yarnpkg.com/Polymer/-/Polymer-1.6.1--.tgz#6bdc3df856c7cf146c0e0153b8e4ac65137d4342"

  ansi-regex@^2.0.0:
    version "2.0.0"
    resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.0.0.tgz#c5061b6e0ef8a81775e50f5d66151bf6bf371107"

  camelcase@^2.0.1:
    version "2.1.1"
    resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"

  cliui@^3.0.3:
    version "3.2.0"
    resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
    dependencies:
      string-width "^1.0.1"
      strip-ansi "^3.0.1"
      wrap-ansi "^2.0.0"

  code-point-at@^1.0.0:
    version "1.1.0"
    resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"

  decamelize@^1.1.1:
    version "1.2.0"
    resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"

  [email protected]:
    version "1.1.0"
    resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-1.1.0.tgz#1c36612937cf7d1596b983e9c5d0c6233eeaa3cf"
    dependencies:
      esutils "^1.1.6"
      isarray "0.0.1"

  esutils@^1.1.6:
    version "1.1.6"
    resolved "https://registry.yarnpkg.com/esutils/-/esutils-1.1.6.tgz#c01ccaa9ae4b897c6d0c3e210ae52f3c7a844375"

  [email protected]:
    version "0.2.2"
    resolved "https://registry.yarnpkg.com/file/-/file-0.2.2.tgz#c3dfd8f8cf3535ae455c2b423c2e52635d76b4d3"

  [email protected]:
    version "0.3.0"
    resolved "https://registry.yarnpkg.com/find-parent-dir/-/find-parent-dir-0.3.0.tgz#33c44b429ab2b2f0646299c5f9f718f376ff8d54"

  invert-kv@^1.0.0:
    version "1.0.0"
    resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"

  is-fullwidth-code-point@^1.0.0:
    version "1.0.0"
    resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
    dependencies:
      number-is-nan "^1.0.0"

  [email protected]:
    version "0.0.1"
    resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"

  lcid@^1.0.0:
    version "1.0.0"
    resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
    dependencies:
      invert-kv "^1.0.0"

  [email protected]:
    version "4.0.0"
    resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.0.0.tgz#9ac43844c595e28d30108b7ba583703395922dfc"

  [email protected]:
    version "0.3.5"
    resolved "https://registry.yarnpkg.com/marked/-/marked-0.3.5.tgz#4113a15ac5d7bca158a5aae07224587b9fa15b94"

  [email protected]:
    version "0.0.8"
    resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"

  [email protected]:
    version "0.5.1"
    resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
    dependencies:
      minimist "0.0.8"

  modernizr@^3.3.1:
    version "3.3.1"
    resolved "https://registry.yarnpkg.com/modernizr/-/modernizr-3.3.1.tgz#2170b3438a7478c16654324f004802aae6a863e9"
    dependencies:
      doctrine "1.1.0"
      file "0.2.2"
      find-parent-dir "0.3.0"
      lodash "4.0.0"
      marked "0.3.5"
      mkdirp "0.5.1"
      requirejs "2.1.22"
      yargs "3.31.0"

  number-is-nan@^1.0.0:
    version "1.0.1"
    resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"

  os-locale@^1.4.0:
    version "1.4.0"
    resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
    dependencies:
      lcid "^1.0.0"

  [email protected]:
    version "2.1.22"
    resolved "https://registry.yarnpkg.com/requirejs/-/requirejs-2.1.22.tgz#dd78fd2d34180c0d62c724b5b8aebc0664e0366f"

  string-width@^1.0.1:
    version "1.0.2"
    resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
    dependencies:
      code-point-at "^1.0.0"
      is-fullwidth-code-point "^1.0.0"
      strip-ansi "^3.0.0"

  strip-ansi@^3.0.0, strip-ansi@^3.0.1:
    version "3.0.1"
    resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
    dependencies:
      ansi-regex "^2.0.0"

  webcomponentsjs@^1.0.2:
    version "1.0.2"
    resolved "https://registry.yarnpkg.com/webcomponentsjs/-/webcomponentsjs-1.0.2.tgz#b028914c579a61d8144913c7c94c2cf73b95fc69"

  window-size@^0.1.4:
    version "0.1.4"
    resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.4.tgz#f8e1aa1ee5a53ec5bf151ffa09742a6ad7697876"

  wrap-ansi@^2.0.0:
    version "2.0.0"
    resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.0.0.tgz#7d30f8f873f9a5bbc3a64dabc8d177e071ae426f"
    dependencies:
      string-width "^1.0.1"

  y18n@^3.2.0:
    version "3.2.1"
    resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"

  [email protected]:
    version "3.31.0"
    resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.31.0.tgz#9f28210aaa0a796570e99505644b968f5e41a1bc"
    dependencies:
      camelcase "^2.0.1"
      cliui "^3.0.3"
      decamelize "^1.1.1"
      os-locale "^1.4.0"
      string-width "^1.0.1"
      window-size "^0.1.4"
      y18n "^3.2.0"

Trace: 
  Error: http://themes.googleusercontent.com/static/fonts/opensans/v6/cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff: invalid tar file
      at Extract.Parse._startEntry (/home/maxw/.nvm/versions/node/v6.9.1/lib/node_modules/yarn/node_modules/tar/lib/parse.js:149:13)
      at Extract.Parse._process (/home/maxw/.nvm/versions/node/v6.9.1/lib/node_modules/yarn/node_modules/tar/lib/parse.js:131:12)
      at BlockStream.<anonymous> (/home/maxw/.nvm/versions/node/v6.9.1/lib/node_modules/yarn/node_modules/tar/lib/parse.js:47:8)
      at emitOne (events.js:96:13)
      at BlockStream.emit (events.js:188:7)
      at BlockStream._emitChunk (/home/maxw/.nvm/versions/node/v6.9.1/lib/node_modules/yarn/node_modules/block-stream/block-stream.js:145:10)
      at BlockStream.write (/home/maxw/.nvm/versions/node/v6.9.1/lib/node_modules/yarn/node_modules/block-stream/block-stream.js:45:10)
      at Extract.Parse.write (/home/maxw/.nvm/versions/node/v6.9.1/lib/node_modules/yarn/node_modules/tar/lib/parse.js:81:23)
      at UnpackStream.ondata (_stream_readable.js:555:20)
      at emitOne (events.js:96:13)