1675455 - Print preview - TAB navigation on More Settings section throws Uncaught TypeError: can't access property "includes", e.target.step is undefined

Status: RESOLVED DUPLICATE of bug 1668849

(Toolkit :: Printing, defect)

Description

[Cristian Fogel [:cfogel]]

Attachment: Screenshot 2020-11-05 at 10.21.20.png

Affected versions

• 84.0a1 (2020-11-04), 83.0b8

Affected platforms

• macOS 10.15, Windows 10, Ubuntu 20;

Steps to reproduce

1. Launch Firefox, access any website ex.
2. CTRL+P to open print preview, expand the More Settings section;
3. Use the TAB key to navigate in options from the PrintPreview interface;

Expected result

• no errors occur;

Actual result

• Error thrown in console:
  Uncaught TypeError: can't access property "includes", e.target.step is undefined
  handleKeypress chrome://global/content/print.js:1336
  handleEvent chrome://global/content/print.js:2036
  initialize chrome://global/content/print.js:1917
  connectedCallback chrome://global/content/print.js:1299
  <anonymous> chrome://global/content/print.js:2100
  print.js:133

Regression range

• First bad: 2020-10-01
• Last good: 2020-09-30
• Pushlog: URL;
• Potential regressor: bug 1664570

Additional notes

• attached image to illustrate the issue;
• S4 as suggested severity since it doesn't seem to have an impact over usability.

Comment 1

[Cristian Fogel [:cfogel]]

Updated flags based on indicated regressor.
@Emma, mind confirming if it is accurate? Thanks!

Comment 2

[Blake Winton (:bwinton) (:☕️)]

Is this a dupe of https://bugzilla.mozilla.org/show_bug.cgi?id=1668849 perhaps?

Comment 3

[Emma Malysz]

Yeah, the error is from the margin select box, so going to make this a dupe of Bug 1668849.