1292043 - Alaska Airline boarding pass gets cut off, in default "shrink to fit" print mode

Status: RESOLVED DUPLICATE of bug 1321803

(Core :: Printing: Output, defect)

Description

[Daniel Holbert [:dholbert]]

STR:
 1. Have an Alaska Airlines flight.
 2. Try to print your boarding pass through their website. Or, just print-preview the page where they show you a miniature version of your boarding pass. (Produces the same results)  In print-preview, be sure "shrink to fit" is selected.

ACTUAL RESULTS:
Despite "shrink to fit" being selected, the boarding pass (and in particular, the all-important barcode!) protrudes off the right side of the paper.

EXPECTED RESULTS:
Boarding pass (and page content in general) should shrink to fit page-width.

Comment 1

[Daniel Holbert [:dholbert]]

I'm using Nightly 51.0a1 (2016-08-03)

Comment 3

[Gérard Talbot]

This report would definitely require a reduced test in order to confirm this bug and eventually improve Firefox print capabilities or related spec compliance. Is it possible to examine a boarding pass sample page without actually reserving a flight?

If we could reach website developers of https://www.alaskaair.com/ and get their assistance, then we could get a sample of their boarding pass webpage code.

How is the barcode generated? Is it an image or is it generated by a custom font?

Comment 4

[Gérard Talbot]

Web check-in

https://webselfservice.alaskaair.com/checkinweb/default.aspx

"(...) Check in and print your boarding pass (...)"

Just as I thought. There are 4 external style sheets, a lot of CSS code (huge amounts of inline style, over-declared, over-defined, over-qualified elements and rules), a lot of javascript in that page. There are browser specific style sheets for media print, for IE8, IE9, IE10 and even for Firefox, it seems:

<link href='images/printstyles.css' type='text/css' rel='stylesheet' media='print'/>
https://webselfservice.alaskaair.com/checkinweb/images/printstyles.css

<link href='images/styles-FireFox.css' type='text/css' rel='stylesheet'/>
https://webselfservice.alaskaair.com/checkinweb/images/styles-FireFox.css

Comment 5

[Daniel Holbert [:dholbert]]

(In reply to Gérard Talbot from comment #3)

This report would definitely require a reduced test in order to confirm this
bug and eventually improve Firefox print capabilities or related spec
compliance. Is it possible to examine a boarding pass sample page without
actually reserving a flight?

(Sorry for the much-delayed reply.)

It's not publicly visible, but I did actually save an unminimized copy of my testcase and included it as a private attachment here.

Using that testcase (visible to me but still probably not broadly visible), I can still reproduce this in Nightly 2016-08-03 (the build that I used in comment 1), but not in current Nightly. It seems this was fixed at some point.

Using mozregression --find-fix, the fix range is:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=2785aaf276ba29fb2e1f5607d90d441fee42efb4&tochange=da22155a2dc30dafc93d70f38f6bb8a49248c80f

In that range, the only commit to mention "print" is for bug 1321803, which sounds similar to this bug. In the testcase here, there is content that's too-large-to-fit, and there's overflow:auto on the body that gets propagated to the viewport, both of which are similar to the setup in bug 1321803.

So: I'm going to assume this was fixed by bug 1321803. Duping.