UserAgent: Mozilla/5.0 (X11; CrOS x86_64 8872.54.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.54 Safari/537.36
Platform: Firmware Google_Monroe.4921.17.0

Example URL:
https://www.linkedin.com

Steps to reproduce the problem:
1. Open Google Chrome in Russia
2. Try to open https://www.linkedin.com  (Site have blocked by State Firewall)
3. Try to setup Chrome Proxy to access ONLY linkedin.com domain by proxy

What is the expected behavior?
Chrome Proxy settings should allow to implement scenario when almost sites are accessing directly but only few blocked sites accessed through proxy.

What went wrong?
You can not setup Chrome Proxy for only one domain (or a few list of domains).

Did this work before? No 

Chrome version: 55.0.2883.54  Channel: beta
OS Version: 8872.54.0
Flash Version: Shockwave Flash 23.0 r0

Chrome Proxy API exists for years and its main conceptions is outdated for now.

In current version Chrome Proxy API allows user to create "Bypass List" which is used to exclude listed domains from proxy. It works fine for business scenario when user located in a corporate network and he want be able direct access to internal servers.

However, The World has changed dramatically for last years.
For now the most common scenario in China, Russia and other countries with strong sensorship is when user located in public network and he want be able direct access to all sites but use proxy for hundreds of sites ("Proxy List") which were banned by a state firewall.

Available free Internet proxies are absolutely unreliable by performance and availability for everyday use that is why proxies should be used only for bypass state firewall and direct access should be used for all other sites which are not blocked yet.
Setting up "Bypass List" in Google Chrome to emulate the second scenario is a nightmare. See attachments below to look at my proxy settings for Google Chrome which make proxied access for only 3 domains (one in each of com, org and co.uk zone).

Chrome Extesions for proxy are not a panacea because at least some of them are sponsored by state agencies and user have no possibilities to check their behavior while extensions can steal user's information from all open tabs and send it to "proxy" server.

For now users in China and Russia actively throw out  their Google Chrome in favour of Opera or Tor browsers which have built-in tools to bypass states firewalls. However users of Chrome OS devices can not change their browsers without change the whole platform. This trend may wipe out the whole Chrome ecosystem.

To save Google Chrome in a half of the World I suggest to implement into Chrome Proxy an "Exclusive mode" with high priority the following way:

1) Chrome Proxy API (and UI in Chrome Settings) should be able to allow user choose between "Bupass mode" (default) and "Direct mode".

Proxy behavior in "Bypass mode" is the same as now (for compatibility).
Proxy behavior in "Direct mode" is using a "Proxy List" instead of "Bypass List".

The purposes of "Proxy List" are the following:
1) If a resource's domain is listed in "Proxy List" then browser should access the resource through proxy. Otherwise browser should get resource directly.
2) "Proxy List" should be included in Chrome Proxy API
3) All proxy settings from G Suite domain policy should be applied for a computer as default but user may overwrite them in his own personal (no domain) profile while at home.
4) Each "Proxy List" record should contains the following attributes:
    a) <Domain Name> (like "google.com") - it should be interpreted by proxy as domain and all its subdomains (google.com + *.google.com)
    b) <Proxy Name> which has format <Proxy Type>:<Proxy IP address>:<Proxy Port>
    <Proxy Type> (like HTTP, HTTPS, SOCKS) - it should be interpreted by proxy as protocol (may be checked in UI in advance and blocked if failed to support)
    <Proxy IP address> - proxy IP address
    <Proxy Port> - proxy port
5) [Optional] Google Chrome may have its own hidden proxy to access only google.com for at least initial setup, login, update and profile sync purposes. In other way the first record of Proxy List may be read-only and always store "google.com" domain only.

Individual proxy settings for each "Proxy List" record are very important because some sites (for example linkedin.com which have blocked in Russia) may sponsored their proxies which can support access for their site only. If <Proxy Name> was ommited for particular <Domain Name> then proxy should use default settings for this <Domain Name>.
 

Deleted: Proxy.txt 2.1 KB

Proxy.txt 2.1 KB View Download