What is the extension in question?  When I try to look up by id ioobhklmhoijaginlnbcmlcjjkgffgnp, I do not see any match in the Chrome Web Store.

Casting the net wide here: Platform>Extensions because an extension is involved, UI>Browser>Navigation because back navigation triggers the error, UI>Browser>NewTabPage because the error is on the new tab page.

#1 
yes, i'ts a generated Id by chrome for development, 

i'm developing a cross-browser extension boilerplate that is so simple yet modern, performant (smallest bundle size, fastest loading speed with code reuse and dynamic loading enabled by code splitting and loading by the framework) 
and a good development experience and speed (with auto/live reloading and sourcemaps for debugging).

just pushed it, here it is: https://github.com/wis/KISS-Angular-TypeScript-Live-Reloading-WebExtensions-Boilerplate

but sadly these 2 issues are blockers.

Thank you for providing more feedback. Adding the requester to the cc list.

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

I still believe this issue belong to Platform>Extensions, UI>Browser>Navigation, or UI>Browser>NewTabPage.  I work on Internals>Network, but it's probably not related to that.  However, while we are waiting for the other teams to triage this bug, if you can collect and attach a chrome://net-export log, I'm happy to take a look at it, just in case this is network stack related after all. Instructions can be found here: https://sites.google.com/a/chromium.org/dev/for-testers/providing-network-details.

Tentatively adding Internals>Network label to keep it on the radar for our network bug triage rotation.

Do you see the same behavior in M67 (67.0.3396.68 Stable) and M68 (68.0.3440.14 Dev)?

Canary is built nightly & may be unstable.

These requests aren't owned by the network team.

@Reporter: As per comment#7 could you please check the behavior on latest stable and dev and report us back the behavior. You can download build from https://www.chromium.org/getting-involved/dev-channel. Hence adding Needs-Feedback label.

Thanks!

I don't think this is a regression, it never worked.

Thank you for providing more feedback. Adding the requester to the cc list.

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

same error message and page in Chrome dev 69
"This site can’t be reached
The webpage at chrome-extension://lfgjdnhkmgehglhkiheobojanjemgghp/#/newtab might be temporarily down or it may have moved permanently to a new web address.
ERR_UNEXPECTED"

Google Chrome	69.0.3452.0 (Official Build) dev (32-bit) (cohort: Dev)
Revision	0d0b79e107ffa727bd13f2636984c125ffc2040c-refs/branch-heads/3452@{#1}
OS	Windows
JavaScript	V8 6.9.91
Flash	24.0.0.189 internal-not-yet-present
User Agent	Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3452.0 Safari/537.36
Command Line	"C:\Program Files (x86)\Google\Chrome Dev\Application\chrome.exe" --flag-switches-begin --flag-switches-end
Executable Path	C:\Program Files (x86)\Google\Chrome Dev\Application\chrome.exe
Profile Path	C:\Users\User\AppData\Local\Google\Chrome Dev\User Data\Default
Variations	c134752e-95b424ac
411b6d4e-3f4a17df
fe69e053-83ce3e87
d01ab0d3-f23d1dea
3cd9377c-ca7d8d80
da89714-4ad60575
fb88346a-ca7d8d80
b1681d28-803f8fc4
9041608a-f23d1dea
1e528f0f-f23d1dea
ca05d627-3f4a17df
c27fec31-c982d8da
7c1bc906-86bf56d9
47e5d3db-3d47f4f4
125b7f68-26e7b859
d442dfb7-41afa35c
41e765a5-3f4a17df
1149accc-3f4a17df
6557d030-6557d030
4dc30737-b8a5ea08
34d450b1-84a883cf
459a590c-eee21741
a582a1b8-ad75ce17
3042ad4b-59e92cae
591576c8-f23d1dea
e56c5101-803f8fc4
41a7f344-3d47f4f4
44827ee5-3f4a17df
5e3a236d-59e286d0
edbcf7c5-ca7d8d80
5485fc4d-3f4a17df
de47491b-f23d1dea
9773d3bd-ca7d8d80
93731dca-3d47f4f4
41f007f9-f23d1dea
8fa604e0-f23d1dea
c992f345-4ad60575
9e5c75f1-b707807e
f2fd8aaf-b13ae1c7
f79cb77b-3f4a17df
d1cd70a5-f23d1dea
4ea303a6-7fa1197f
6e6e0c7e-3f17a7d8
d92562a9-cfe3c2ea
7aa46da5-c946b150
f6b41a91-f23d1dea
74c3667-ca7d8d80
2c1d398c-f23d1dea
6973a1cf-f23d1dea
ad6d27cc-7075cd8
da460ac8-3f4a17df
f3ea30a0-ad39de72
5a42b5d9-3f4a17df
344833e9-473e8c2e
4bc337ce-69465896
9a2f4e5b-ca7d8d80
494d8760-52325d43
3ac60855-486e2a9c
f296190c-2624949d
4442aae2-e1cc0f14
ed1d377-e1cc0f14
12e17bc5-e1cc0f14
75f0f0a0-6bdfffe7
e2b18481-75cb33fc
e7e71889-4ad60575
6e3b857e-f23d1dea
bbb8f811-3f4a17df
6a51bb09-6a51bb09
308674c4-ca7d8d80
94e68624-3f4a17df
cc73f8a1-a3a14831
10a311eb-cf4f6ead
8834fcca-f23d1dea
81c6897f-f23d1dea
Linker	lld-link


for testing, you can download the extension I attached in previous comments, load it, go to the new page tab and hit F5.
if you don't trust me to load a uglified and minfied build, clone the repo, run npm install and npm start or build, load the extension etc..

it had my IP address in a log line for a QUIC handshake with home, Google.com, despite test/logging duration being only few seconds.
I took the freedom to replace it with "MY.IP.WAS.HERE" and redact some few other stuff.
shouldn't that be fixed given that we're posting the log publicly here?

relevant URLs or details to focus on: chrome-extension://lfgjdnhkmgehglhkiheobojanjemgghp/#/newtab

Deleted: chrome-net-export-log.json 90.4 KB

chrome-net-export-log.json 90.4 KB View Download

wesam.wesam.co@ Thanks for the update.

Tried loading the given extension on Windows 10 on the latest Canary 69.0.3466.0 in comment #3 and unable to load the extension.
Can see the error "Failed to load extension" while trying to load the same.

Can you please provide a sample extension files in zip format which will help in reproducing the issue.

Also requesting CC'ed Devs to look into the issue and help in further triaging.

Thanks..

you might have downloaded the repo from github and tried loading the extension without building it first.
you need to have node js installed and to run 'npm install' then 'npm build'
in the command line in the source code directory before you load it.

but here's a link to a built and bundled extension zip I uploaded and provided in my related issue 847612 Comment #10 on the 30th of May.
https://uploadfiles.io/9h3i7

load it, open a new tab, accept the new tab in the browser popup,
hit F5 to refresh

Thank you for providing more feedback. Adding the requester to the cc list.

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

As per comment# 16, navigated to the URL: https://uploadfiles.io/9h3i7 for downloading the extension to test the issue, but after navigating it is showing as "File not found".

@Reporter: Please find the attached screencast for your reference and let us know if we missed anything in reproducing the issue, provide your feedback on it which help in further triaging it.

Thanks!

Deleted: 849015.mp4 3.8 MB

	849015.mp4 3.8 MB View Download

As there is no update from the reporter since a long time, marking this issue as WontFix.
Please feel free to raise a new bug if any issues are observed on the latest Chrome builds.

Thanks...