orrin.gradwell@, can you please provide a sample test case to repro?

Certainly,

When you go to https://www.capeunionmart.co.za as an example, and view the first four buttons, ("View & Buy"), you'll notice that they have border-radius: 4px;

This was not the case before...

Although I am aware that it can be mitigated by correctly catering for all browser by using webkit standards, etc... the normal guy out there does not know this thus, there are now plenty sites out there that have rounded corners where it's un-wanted.

The code snippet provided in the OP is taken from this site... 

Thank you for providing more feedback. Adding requester "manoranjanr@chromium.org" to the cc list and removing "Needs-Feedback" label.

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Unable to reproduce the issue on reported version 62.0.3202.94 and latest Dev 64.0.3272.0 using Mac 10.12.6. Please find the attached screen-cast and let us know if we have missed any steps in the process of reproducing the issue from TE-end

Deleted: Nov-20-2017-1_13-PM.mp4 1.5 MB

	Nov-20-2017-1_13-PM.mp4 1.5 MB View Download

This is indeed now the case, we had to make a fix for it as the client picked this up and was not happy.
I also have to note that we manage quite a few individual sites (56 to be exact),

I have attached a screen cast of three of our other sites that still have the issue on it.

https://drive.google.com/file/d/1QnKt1yxQ2qLSPpRvebPVXyyOo9evtaUO/view

Please let me know if you require any further information.

Deleted: Nov 20 2017 4_14 PM.webm 12.8 MB

	Nov 20 2017 4_14 PM.webm 12.8 MB View Download

Thank you for providing more feedback. Adding requester "divya.padigela@techmahindra.com" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

To clarify a bit - https://www.capeunionmart.co.za is now overriding the border-radius: 4px; in .button. Looking at the first screen-cast it looks like this may have been missed.

I am not seeing any evidence of a bug. Can you attach a minimal .html example, or link to a minimal example.

@jack, correct, we implemented a "border-radius:0" to fix the issue.
If border-radius is not defined, then border-radius: 4px is forced as shown in the screencast.

@Eric, I'm not sure what it is that you would like to see as I highlighted the issue in the screencast above.
What I can tell is that since Chrome updated, All our sites now have border-radius: 4px applied to .button. if border-radius is not defined...

You can view https://www.treadandmiller.co.za/ and inspect all buttons. (VIEW & BUY)

Here is a minimal reproduction: https://codepen.io/anon/pen/gXegyY

I have attached a screenshot of the unexpected style.

macOS 10.12.6 (16G29)/Chrome 62.0.3202.94

Deleted: Screen Shot 2017-11-21 at 10.44.56 AM.png 155 KB

	Screen Shot 2017-11-21 at 10.44.56 AM.png 155 KB View Download

I have been able to reproduce the 4px border radius with the following configurations:

macOS 10.12.6 / Chrome 62.0.3202.94
macOS 10.13.1 / Chrome 62.0.3202.94

I have _not_ been able to reproduce the 4px border radius with the following configuration:

win 7 SP1 (7601) / Chrome 62.0.3202.94

This issue is a dup of https://bugs.chromium.org/p/chromium/issues/detail?id=752450

The border-radius has been reverted here https://chromium.googlesource.com/chromium/src.git/+/f764659b2235005f9e1f6c5a86fd27716a6bad38%5E%21/#F96

I can confirm this is no longer an issue in Canary (64.0.3274.0). I am not too familiar with the release channels but I assume this can't/won't be cherry picked into stable?

Merging to 752450 per comment 13.

M64 will be released to stable channel late Jan, 2018 (next month).

It looks the change was merged to M63, so it should be fixed on the stable
channel now.