Another footnote, this behaviour does not occur in the latest Firefox, and began happening in Chrome up to a month ago, not sure what version specifically.

 Issue 809965  has been merged into this issue.

Thanks for filing the issue!

Checked the issue on reported chrome version 64.0.3282.140 and on the latest canary 66.0.3342.0 using Mac 10.13.1 with the steps mentioned below.
1. Launched Chrome
2. Navigated to the URL given in Comment#0
3. Inspect->Network tab->Reloading the page->Clicked on the link->Headers
We are able to see the result similar to that of the attachment in C#0. 
Note: Attaching the screenshot from M60(60.0.3072.0), where similar result is seen.

@Reporter: Could you please have a look at the screenshot provided with this comment and let us know if the issue is there, your confirmation helps us to triage the issue in a better way.

Deleted: 809970.png 659 KB

	809970.png 659 KB View Download

I probably could have made this clearer... The issue is not what's in the response, but instead stems from performing this request from inside another web-page. A script on my webpage is performing a request to this URL in order to get data to use in the current page, but the JavaScript console treats it as page navigation and clears the console.

Thank you for providing more feedback. Adding requester "vamshi.kommuri@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

 Issue 809947  has been merged into this issue.

This is due to out-of-process iframe, regressed from M64. We should merge the fix to M65.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4e44555895b1c2fb682e33ffdaf9860dbe33ea45

commit 4e44555895b1c2fb682e33ffdaf9860dbe33ea45
Author: Dmitry Gozman <dgozman@chromium.org>
Date: Fri Feb 09 22:44:18 2018

[DevTools] Fix console problems with oopif

- Do not clear console on iframe navigation;
- Do not print "Navigated to ..." message on iframe navigation;
- Do not reset all UIMessages on iframe navigation.

Bug:  809970 
Change-Id: I591872eae4d4276a9362180a53d7a6dce2dd56d5
Reviewed-on: https://chromium-review.googlesource.com/909864
Commit-Queue: Dmitry Gozman <dgozman@chromium.org>
Reviewed-by: Pavel Feldman <pfeldman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#535860}
[add] https://crrev.com/4e44555895b1c2fb682e33ffdaf9860dbe33ea45/third_party/WebKit/LayoutTests/http/tests/devtools/oopif/oopif-console-preserves-log-on-frame-navigation-expected.txt
[add] https://crrev.com/4e44555895b1c2fb682e33ffdaf9860dbe33ea45/third_party/WebKit/LayoutTests/http/tests/devtools/oopif/oopif-console-preserves-log-on-frame-navigation.js
[add] https://crrev.com/4e44555895b1c2fb682e33ffdaf9860dbe33ea45/third_party/WebKit/LayoutTests/http/tests/devtools/oopif/oopif-presentation-console-messages-expected.txt
[add] https://crrev.com/4e44555895b1c2fb682e33ffdaf9860dbe33ea45/third_party/WebKit/LayoutTests/http/tests/devtools/oopif/oopif-presentation-console-messages.js
[add] https://crrev.com/4e44555895b1c2fb682e33ffdaf9860dbe33ea45/third_party/WebKit/LayoutTests/http/tests/devtools/oopif/resources/empty.html
[add] https://crrev.com/4e44555895b1c2fb682e33ffdaf9860dbe33ea45/third_party/WebKit/LayoutTests/http/tests/devtools/oopif/resources/error.html
[modify] https://crrev.com/4e44555895b1c2fb682e33ffdaf9860dbe33ea45/third_party/WebKit/Source/devtools/front_end/bindings/PresentationConsoleMessageHelper.js
[modify] https://crrev.com/4e44555895b1c2fb682e33ffdaf9860dbe33ea45/third_party/WebKit/Source/devtools/front_end/console_model/ConsoleModel.js
[modify] https://crrev.com/4e44555895b1c2fb682e33ffdaf9860dbe33ea45/third_party/WebKit/Source/devtools/front_end/main/Main.js

Actually, there is no need to merge this to 65.

[Auto-generated comment by a script] We noticed that this issue is targeted for M-65; it appears the fix may have landed after branch point, meaning a merge might be required. Please confirm if a merge is required here - if so add Merge-Request-65 label, otherwise remove Merge-TBD label. Thanks.