Uncaught TypeError: Cannot read property 'test' of undefined

[goldenwunder]

[Enter steps to reproduce:]

1. ...
2. ...

Atom: 1.52.0 x64
Electron: 6.1.12
OS: "Red Hat
Thrown From: bg-ui-font-sizer package 2.0.0

Stack Trace

Uncaught TypeError: Cannot read property 'test' of undefined

At /home/abenson/.atom/packages/bg-ui-font-sizer/node_modules/bg-atom-utils/polyfill-workspace.js:98

TypeError: Cannot read property 'test' of undefined
    at /packages/bg-ui-font-sizer/node_modules/bg-atom-utils/polyfill-workspace.js:98:47
    at Array.filter (<anonymous>)
    at Workspace.getItemsByURI (/packages/bg-ui-font-sizer/node_modules/bg-atom-utils/polyfill-workspace.js:98:16)
    at Workspace.hide (/packages/bg-ui-font-sizer/node_modules/bg-atom-utils/polyfill-workspace.js:109:27)
    at Workspace.toggle (/arm/tools/atom/atom/1.52.0/linux64/share/atom/resources/app/static/<embedded>:11:433223)
    at TreeView.toggle (/arm/tools/atom/atom/1.52.0/linux64/share/atom/resources/app/static/<embedded>:14:953779)
    at HTMLElement.tree-view:toggle (/arm/tools/atom/atom/1.52.0/linux64/share/atom/resources/app/static/<embedded>:11:1153379)
    at CommandRegistry.handleCommandEvent (/arm/tools/atom/atom/1.52.0/linux64/share/atom/resources/app/static/<embedded>:11:349963)
    at KeymapManager.dispatchCommandEvent (/arm/tools/atom/atom/1.52.0/linux64/share/atom/resources/app/static/<embedded>:11:1231297)
    at KeymapManager.handleKeyboardEvent (/arm/tools/atom/atom/1.52.0/linux64/share/atom/resources/app/static/<embedded>:11:1227431)
    at WindowEventHandler.handleDocumentKeyEvent (/arm/tools/atom/atom/1.52.0/linux64/share/atom/resources/app/static/<embedded>:11:284820)

Commands

  2x -8:20.6.0 core:backspace (input.hidden-input)
     -5:19.2.0 core:save (input.hidden-input)
     -4:54.4.0 editor:newline (input.hidden-input)
  2x -4:52 core:backspace (input.hidden-input)
     -4:50.3.0 core:save (input.hidden-input)
     -1:08.5.0 tree-view:toggle (input.hidden-input)

Non-Core Packages

accents-ui 1.3.0 
advanced-open-file 0.16.8 
aligner 1.2.4 
aligner-javascript 1.3.0 
aligner-python 1.2.0 
aligner-verilog 1.0.0 
apio-linter-verilog 0.7.2 
atom-alignment 0.13.0 
atom-beautify 0.33.4 
atom-brackets-glow 0.6.0 
atom-clock 0.1.18 
atom-ctags 5.1.2 
atom-cursor-indent 0.3.3 
atom-dark-solarized-ui 0.55.0 
atom-file-icons 0.7.1 
atom-fuzzy-grep 0.17.2 
atom-html-preview 0.2.6 
atom-icons 0.2.2 
atom-ide-datatip 0.20.4 
atom-ide-debugger-python 0.7.3 
atom-ide-definitions 0.4.0 
atom-ide-hyperclick 1.0.9 
atom-ide-markdown-service 1.6.0 
atom-keyboard-macros 0.12.1 
atom-material-ui 2.1.3 
atom-ncvlog-linter 0.3.0 
atom-overtype-mode 0.4.0 
atom-show-project-name 0.1.4 
autocomplete 0.47.0 
autocomplete-clang 0.13.1 
autosave-onchange 1.5.1 
bg-ui-font-sizer 2.0.0 
block-cursor 0.13.3 
busy 0.7.0 
busy-signal 2.0.1 
city-lights-syntax 1.1.8 
city-lights-ui 1.5.3 
color-picker 2.3.0 
color-tabs 0.1.8 
color-tabs-byproject 1.3.0 
color-tabs-regex 0.2.5 
copy-with-style 1.1.0 
custom-window-title-baincd 1.1.0 
dash-syntax 0.4.2 
dash-ui 0.4.4 
Delete-Whitelines 0.6.4 
favorites 1.1.0 
file-icons 2.1.45 
file-type-icons 1.3.4 
file-watcher 2.0.0 
find-selection 0.16.0 
fonts 3.12.0 
git-log 0.4.1 
git-plus 8.7.1 
git-status 0.3.4 
git-time-machine 2.1.0 
goto-definition 1.3.4 
hackify-ui 0.3.0 
hacking-the-kernel-ui 1.8.5 
hey-pane 1.2.0 
hidpi 0.14.0 
highlight-colors 0.9.0 
highlight-selected 0.17.0 
hyperclick 0.1.5 
ide-python 1.6.2 
indent-guide-improved 1.4.13 
intentions 1.1.5 
ip-status 0.1.0 
isotope-ui 2.8.5 
keyword-pair-matcher 0.2.2 
language-diff 0.7.0 
language-fish-shell 1.1.0 
language-ini 1.23.0 
language-powershell 5.0.0 
language-systemverilog 0.12.2 
language-tcl 0.1.2 
language-verilog 0.4.0 
linter 3.1.1 
linter-gcc 0.9.0 
linter-pyflakes 0.3.2 
linter-shellcheck 1.6.0 
linter-ui-default 2.1.5 
linter-verilator 0.3.0 
linter-verilog 0.7.0 
linter-veriloghdl 1.1.1 
logo-file-icons 1.13.0 
mono-pro-ui 1.0.0 
monokai 0.27.0 
monokai-dark 1.5.0 
multi-cursor-plus 1.2.0 
multi-file-open 0.1.1 
narrow 0.65.2 
open-this 0.5.0 
plain-simple 1.1.0 
prime-file-icons 0.3.0 
project-manager 3.3.8 
project-plus 1.0.0 
project-view 0.6.5 
project-viewer 1.4.0 
project-viewer-plus 0.0.11 
python-autopep8 0.1.3 
python-debugger 0.2.0 
python-linters 0.0.5 
quick-highlight 0.13.0 
recent-files-fuzzy-finder 1.0.0 
revert-buffer 0.6.0 
script 3.26.0 
simple-panes 1.2.0 
snow-flakes 0.1.0 
solarized-dark-ui 0.3.2 
solarkai-syntax 1.2.0 
sorted-tab-history 1.1.4 
split-diff 1.6.1 
styri-syntax 1.0.0 
sublime-block-comment 0.5.1 
Sublime-Style-Column-Selection 1.7.5 
symbols-tree-view 0.14.0 
sync-settings 5.0.10 
tabs-to-spaces 1.0.5 
terminus 4.0.6 
toggle-packages 1.1.0 
toggle-quotes 1.1.4 
tool-bar 1.4.2 
trashman 0.2.0 
tree-view-auto-collapse 1.0.3 
tree-view-auto-fold 1.3.0 
tree-view-autoadjust 3.0.0 
tree-view-sort 0.12.1 
verilog-auto-module-init 2.0.0 
verilog-tools 0.1.0 
white-cursor 0.7.0 
window-focus 1.0.0