Change:
dependencies: object-keys "~0.4.0" <del> xterm-addon-canvas@0.5.0-beta.34: version "0.5.0-beta.34" resolved "https://registry.yarnpkg.com/xterm-addon-canvas/-/xterm-addon-canvas-0.5.0-beta.34.tgz#d471d31e5267810345d2eab32b3c5ce30b35ca0d" integrity sha512-U/ed03hMIXE/cFV6IJxb+GOlp+MOpWI31CSb8ApGlH4Y6vtcTX/mWmmv63TOpD+wCcyUqYRxpESfnv3dEnn6ag== </del> <ins> xterm-addon-canvas@0.6.0-beta.16: version "0.6.0-beta.16" resolved "https://registry.yarnpkg.com/xterm-addon-canvas/-/xterm-addon-canvas-0.6.0-beta.16.tgz#6d6a475824c3c0129f3cb38eaea69cf12386cc31" integrity sha512-uh90h+uozwrZbc/yMhbRnKIY7J34CTse6njibajdeK+0hQvj09HnBXgkvALImR/sEwyIz8SVtSL+OOZTlmAHIQ== </ins> xterm-addon-image@0.6.0-beta.21: version "0.6.0-beta.21" resolved "https://registry.yarnpkg.com/xterm-addon-image/-/xterm-addon-image-0.6.0-beta.21.tgz#e3708bc504c56a23ff31f12a2eeb335331a92aac" integrity sha512-8/PTaXVPa4kQ0xzVeuZZk10OpbZBj2cgfwhM2B0ChSPvwrk0lX+ksnXdtDKH3tg+JYvo7fIhNXtkr4NwWt7VJQ== <del> xterm-addon-search@0.13.0-beta.27: version "0.13.0-beta.27" resolved "https://registry.yarnpkg.com/xterm-addon-search/-/xterm-addon-search-0.13.0-beta.27.tgz#480b338df478a6fb7119654a2946e5d350e199c0" integrity sha512-NZPPM6/QUfkTTfaIUmteOw6RBPrpD+Arwi/BAUNAhR0L07JC3yADxKPUt/zZvFm0j3TX0KunLsXLnx+YNFfL/Q== xterm-addon-serialize@0.11.0-beta.27: version "0.11.0-beta.27" resolved "https://registry.yarnpkg.com/xterm-addon-serialize/-/xterm-addon-serialize-0.11.0-beta.27.tgz#544303a7d4a48c5d091908638ceffdfb16e83318" integrity sha512-J0pqCfhI5ty+9KJW0kxd+LdjUFSrLUlSUGQrEpd956O3xn43uC0V5Af0mjAMBvaHTYl+a4E0HtqkMUD65gBfFw== xterm-addon-unicode11@0.6.0-beta.19: version "0.6.0-beta.19" resolved "https://registry.yarnpkg.com/xterm-addon-unicode11/-/xterm-addon-unicode11-0.6.0-beta.19.tgz#4c609db6aa9579d964d351b59169b55e64c84dda" integrity sha512-sz763wFZZbDlKs65rVOLcIPs9K/uAtpeI1lAEE2ZtAEHZId9AZkx0djfYM6JrOR14JeyWgyBz/k5UUnqrL57kw== xterm-addon-webgl@0.16.0-beta.37: version "0.16.0-beta.37" resolved "https://registry.yarnpkg.com/xterm-addon-webgl/-/xterm-addon-webgl-0.16.0-beta.37.tgz#b81d18ca0ba54d64695ffb5a51ce80a1118ddf97" integrity sha512-lNiQx/nMc/6NoK0GBzfdaOFQoWz9WvqPNBEvFR44amd9D1+ysIK6iXv7+uIPj0oNS/Qu6vOfqlVAbdV1yLfciw== xterm-headless@5.3.0-beta.73: version "5.3.0-beta.73" resolved "https://registry.yarnpkg.com/xterm-headless/-/xterm-headless-5.3.0-beta.73.tgz#1a8080c4334ec116378a3538fb2bb874a63c4dff" integrity sha512-GmL5U7Fd2vF6IyIcrSOXdHhnhiaV3V3+Ce9FE2z9VZvftjnvUa7mD32OG+geimF7dIXHYjZMx380JSOW73wurQ== xterm@5.3.0-beta.73: version "5.3.0-beta.73" resolved "https://registry.yarnpkg.com/xterm/-/xterm-5.3.0-beta.73.tgz#5adb74403e513a8a897b627fdc961d750452a0ba" integrity sha512-f0hw9VYwVoHGXHp7zBu5SsQk45bpsU99NBqFnxPvdB4CNs9zIB2DwgnRI3NsjQ6xoWUrup47ghIK5xlnnGewlQ== </del> <ins> xterm-addon-search@0.14.0-beta.15: version "0.14.0-beta.15" resolved "https://registry.yarnpkg.com/xterm-addon-search/-/xterm-addon-search-0.14.0-beta.15.tgz#fcea611a04a8f4fd5dd3ec5e3403cce9cde72f0a" integrity sha512-wPk3FzOFIeEAgVMjNL6CHoAfPcmk3DWwf28AtICfJ512JVJ3d0o9mUEh853m08/eaJJikAMXMEgTGRgjNtZU3Q== xterm-addon-serialize@0.12.0-beta.15: version "0.12.0-beta.15" resolved "https://registry.yarnpkg.com/xterm-addon-serialize/-/xterm-addon-serialize-0.12.0-beta.15.tgz#8e210d566c03b616823317a31dbce474a728b3c9" integrity sha512-4iF9pQ/q6831ayADPlngAM0aa/mhzvZ4XEd4UNJIgW7mpgoSTvnbh6d6lb37pNkpdDFIRLJv6rlqDjlh6EkoJg== xterm-addon-unicode11@0.7.0-beta.15: version "0.7.0-beta.15" resolved "https://registry.yarnpkg.com/xterm-addon-unicode11/-/xterm-addon-unicode11-0.7.0-beta.15.tgz#07359424a862aedc456f35f95126739cd4fbe7de" integrity sha512-CdPuahtDiacsBO618XTNc+z3diWPVzvpVlk0NcIsUpcdsF+44rgRBFaD7mT4tfAFU1w1ibTzTfOakrFlYZuM0A== xterm-addon-webgl@0.17.0-beta.15: version "0.17.0-beta.15" resolved "https://registry.yarnpkg.com/xterm-addon-webgl/-/xterm-addon-webgl-0.17.0-beta.15.tgz#53e15a170e4e9d8ddafb8971b2e63b4c596b9744" integrity sha512-3JJ8KumPzFut1yloNhIrvObBwqp8kbqBI/up77MIyGE/6WiGhgecUFPmT8rYUCv4g/GBXoMan755yOEUNkKtcg== xterm-headless@5.4.0-beta.17: version "5.4.0-beta.17" resolved "https://registry.yarnpkg.com/xterm-headless/-/xterm-headless-5.4.0-beta.17.tgz#cb779eba8da66ecad6f4be41af649453bb3260e9" integrity sha512-ax2asr5QS4EnJAmRnKDDnAqESst+r2G/MckaYdxTDgX0pc997TU4B/JQ6c5BhxVLQvRwmotTm11/n909HiHadQ== xterm@5.4.0-beta.17: version "5.4.0-beta.17" resolved "https://registry.yarnpkg.com/xterm/-/xterm-5.4.0-beta.17.tgz#7e7841b09339670c5ada967b73a1416d1b3dc9f7" integrity sha512-hTSJHkyH/m26nQJt1oNI1KJU18JVJpOy41pP9WRRFQx1KoHhYq4HMRl7LO42SJt6Vs0mig0UYkbEnRWfT4FCww== </ins> y18n@^3.2.1: version "3.2.2"

Discussion:
Upstream: To verify: linux/macOS/wsl various values of (eg. 1, 4.5, 10) first with no selection and second with a selection. You may need to change your theme to see the differences

Upstream: Repro: Linux/macOS/WSL , it should not show invisible in the output

noticed by
Verify that when you have a screen reader on, you hear the output of a command upon pressing enter
Reproduces in the demo. Does not reproduce in stable VS Code
upstream issue:
With a screen reader enabled, run a command that yields short output, such as . Verify that the screen reader reads the output.