Kaspersky antivirus breaks Firestore ("Could not reach Cloud Firestore backend.") #1190

h2u · 2018-09-02T10:11:18Z

UPDATE [by @mikelehen 2018/10/21]: This issue has morphed into specifically being about the Kaspersky antivirus software blocking Firestore. Please open a separate bug if you're encountering issues without Kaspersky.

Environment

Operating System version: Windows 10
Browser version: Chrome 68.0.3440.106
Firebase SDK version: 5.4.2
Firebase Product: store

Problem

Im using Firestore with Ionic (Angularfire2 package). Any collection or doc gives error but after ~10 seconds it gives data. Auth works without any problems.

Error:

@firebase/firestore: Firestore (5.0.4): Could not reach Cloud Firestore backend. Backend didn't respond within 10 seconds.
This typically indicates that your device does not have a healthy Internet connection at the moment. The client will operate in offline mode until it is able to successfully connect to the backend.

Created new Firebase Project and new Ionic project, installed packages, tried to make collection, shows same error.

"angularfire2": "^5.0.0-rc.12",
"firebase": "^5.4.2",
"rxjs": "^6.3.1",
"rxjs-compat": "^6.3.1",

The code im trying to run:

  db.collection('categories').valueChanges().subscribe(data => {
    console.log(data);
  });

And the console output:

[2018-09-02T09:05:36.388Z]  @firebase/firestore: Firestore (5.0.4) [FirestoreClient]: Initializing. user= null
index.esm.js:65 [2018-09-02T09:05:36.389Z]  @firebase/firestore: Firestore (5.0.4) [MemoryPersistence]: Starting transaction: Start LocalStore
index.esm.js:65 [2018-09-02T09:05:36.391Z]  @firebase/firestore: Firestore (5.0.4) [MemoryPersistence]: Starting transaction: Get last stream token
index.esm.js:65 [2018-09-02T09:05:36.392Z]  @firebase/firestore: Firestore (5.0.4) [MemoryPersistence]: Starting transaction: Get next mutation batch
index.esm.js:65 [2018-09-02T09:05:36.394Z]  @firebase/firestore: Firestore (5.0.4) [MemoryPersistence]: Starting transaction: Allocate query
index.esm.js:65 [2018-09-02T09:05:36.396Z]  @firebase/firestore: Firestore (5.0.4) [MemoryPersistence]: Starting transaction: Execute query
index.esm.js:65 [2018-09-02T09:05:36.396Z]  @firebase/firestore: Firestore (5.0.4) [MemoryPersistence]: Starting transaction: Remote document keys
index.esm.js:65 [2018-09-02T09:05:36.399Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: Creating WebChannel: https://firestore.googleapis.com/google.firestore.v1beta1.Firestore/Listen/channel [object Object]
index.esm.js:65 [2018-09-02T09:05:36.415Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: Opening WebChannel transport.
index.esm.js:65 [2018-09-02T09:05:36.418Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel sending: {"database":"projects/app-17s82/databases/(default)","addTarget":{"query":{"structuredQuery":{"from":[{"collectionId":"categories"}],"orderBy":[{"field":{"fieldPath":"__name__"},"direction":"ASCENDING"}]},"parent":"projects/app-17s82/databases/(default)"},"targetId":2}}
index.esm.js:65 [2018-09-02T09:05:36.683Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel transport opened.
index.esm.js:77 [2018-09-02T09:05:47.151Z]  @firebase/firestore: Firestore (5.0.4): Could not reach Cloud Firestore backend. Backend didn't respond within 10 seconds. This typically indicates that your device does not have a healthy Internet connection at the moment. The client will operate in offline mode until it is able to successfully connect to the backend.
index.esm.js:65 [2018-09-02T09:06:06.989Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"targetChange":{"targetChangeType":"ADD","targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:06.991Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:32.276692Z","fields":{"image":{"stringValue":"categories/a.jpg"},"lang_key":{"stringValue":"A"},"order":{"integerValue":"10"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/54Nxy6OOm4yantdzUDXu","updateTime":"2018-08-27T18:08:13.536914Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:06.994Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:31.537482Z","fields":{"image":{"stringValue":"categories/b.jpg"},"lang_key":{"stringValue":"B"},"order":{"integerValue":"6"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/8xNLqdlqqflMbu6Y8P8k","updateTime":"2018-08-26T18:59:31.537482Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:06.996Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:30.510370Z","fields":{"image":{"stringValue":"categories/c.jpg"},"lang_key":{"stringValue":"C"},"order":{"integerValue":"1"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/9UFJB2KAhFij6tcKaVFK","updateTime":"2018-08-26T18:59:30.510370Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:06.997Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:31.944855Z","fields":{"image":{"stringValue":"categories/d.jpg"},"lang_key":{"stringValue":"D"},"order":{"integerValue":"8"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/B76lIXguh3hFZcnXLybt","updateTime":"2018-08-26T18:59:31.944855Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:06.999Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:31.144277Z","fields":{"image":{"stringValue":"categories/e.jpg"},"lang_key":{"stringValue":"E"},"order":{"integerValue":"4"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/Dh10cOAFtywBF1nD6Oit","updateTime":"2018-08-26T18:59:31.144277Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:07.000Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:32.469426Z","fields":{"image":{"stringValue":"categories/a1.jpg"},"lang_key":{"stringValue":"A1"},"order":{"integerValue":"11"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/TaMikooiiCQSVcgvdUcM","updateTime":"2018-08-26T18:59:32.469426Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:07.002Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:31.341506Z","fields":{"image":{"stringValue":"categories/a2.jpg"},"lang_key":{"stringValue":"A2"},"order":{"integerValue":"5"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/bNk3WF02m9QC72W9CNFD","updateTime":"2018-08-26T18:59:31.341506Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:07.003Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:32.137302Z","fields":{"image":{"stringValue":"categories/a3.jpg"},"lang_key":{"stringValue":"A3"},"order":{"integerValue":"9"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/e0ffuG7GM1ikxdksjihZ","updateTime":"2018-08-26T18:59:32.137302Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:07.004Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:30.946686Z","fields":{"image":{"stringValue":"categories/a4.jpg"},"lang_key":{"stringValue":"A4"},"order":{"integerValue":"3"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/fgxGcgA9Ye3sue2FkNzo","updateTime":"2018-08-26T18:59:30.946686Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:07.006Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:31.747379Z","fields":{"image":{"stringValue":"categories/a5.jpg"},"lang_key":{"stringValue":"A5"},"order":{"integerValue":"7"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/fnSThPm2vbDdO8w5fIA1","updateTime":"2018-08-26T18:59:31.747379Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:07.008Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:30.294481Z","fields":{"image":{"stringValue":"categories/b1.jpg"},"lang_key":{"stringValue":"WORK"},"B1":{"integerValue":"0"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/tDQRayJlugtkIvIdtqGb","updateTime":"2018-08-26T18:59:30.294481Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:07.010Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"documentChange":{"document":{"createTime":"2018-08-26T18:59:30.712287Z","fields":{"image":{"stringValue":"categories/b2.jpg"},"lang_key":{"stringValue":"B2"},"order":{"integerValue":"2"},"visible":{"booleanValue":true}},"name":"projects/app-17s82/databases/(default)/documents/categories/tymqkjiII9sEKWxR9Cnw","updateTime":"2018-08-26T18:59:30.712287Z"},"targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:07.011Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"targetChange":{"readTime":"2018-09-02T10:06:51.233599Z","resumeToken":"CgkIv6qFq4mc3QI=","targetChangeType":"CURRENT","targetIds":[2]}}
index.esm.js:65 [2018-09-02T09:06:07.011Z]  @firebase/firestore: Firestore (5.0.4) [Connection]: WebChannel received: {"targetChange":{"readTime":"2018-09-02T10:06:51.233599Z","resumeToken":"CgkIv6qFq4mc3QI="}}
index.esm.js:65 [2018-09-02T09:06:07.022Z]  @firebase/firestore: Firestore (5.0.4) [MemoryPersistence]: Starting transaction: Get last remote snapshot version
index.esm.js:65 [2018-09-02T09:06:07.026Z]  @firebase/firestore: Firestore (5.0.4) [MemoryPersistence]: Starting transaction: Apply remote event
index.esm.js:65 [2018-09-02T09:06:07.043Z]  @firebase/firestore: Firestore (5.0.4) [MemoryPersistence]: Starting transaction: Garbage collection
app.provider.ts:62 (12) [{…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}]

The text was updated successfully, but these errors were encountered:

banazak · 2018-09-06T17:49:58Z

+1

d-yoshi · 2018-09-10T14:01:45Z

I think that anti-virus software is causing this error as one of the causes.

h2u · 2018-09-12T14:51:50Z

@mickev36 , the problem is random but happens very recently.

Maybe @d-yoshi is right, it's anti-virus. Had no chance to work on project without anti-virus on Windows.

At the moment Im working on MacOS on the same network as Windows was and have no problems with connection.

banazak · 2018-09-12T14:57:47Z

In our case it was also the anti-virus (Kaspersky). It worked without it.

h2u · 2018-09-12T16:31:52Z

I feel that I have same problem because I have Kaspersky as well.

d-yoshi · 2018-09-13T13:49:12Z

I'm also using Kaspersky and I encountered this problem frequently.
I don't know any solution other than invalidating Kaspersky for now. 😢

gamsterx · 2018-09-14T14:30:47Z

Same problem here since a week or two. Also Kaspersky...
When I first load the page the following error message is output (every single time):

@firebase/firestore: Firestore (5.5.0): Could not reach Cloud Firestore backend. Backend didn't respond within 10 seconds.

after 30+ seconds the data from firestore finally loads

XHR finished loading: POST "https://firestore.googleapis.com/google.firestore.v1beta1.Firestore/Listen/channel..."

If I reload the page and navigate to another page, where firestore data is loaded, I immediately get the data back without the error. 😕

If I pause Kaspersky the error does not occurr.

...
"@angular/fire": "^5.0.0",
"firebase": "^5.5.0",
...

ThiloKielmann · 2018-09-15T06:49:05Z

Same here. My users (in web browsers) get the same message about firestore not being able to reach its backend once Kaspersky is activated on a Win 10 machine...

rodrigomata · 2018-09-19T18:15:07Z

+1

gamsterx · 2018-09-29T09:57:57Z

So I just generated a new angular project and only used the firebase sdk (5.5.2) to see if some other package causes the issue. It had the same outcome.

I currently have Kaspersky Internet Security 2018 installed. When I switch off the web anti virus feature the error does not occur! I immediately get all my desired data back from firestore.

My current workaround for development is to leave web anti virus running and to add the following url to the tursted websites within the web anti virus settings of kaspersky:

https://firestore.googleapis.com/*

This seems to work, but would only be acceptable for development.

mikelehen · 2018-09-30T21:22:56Z

@gamsterx It would be very helpful if you could report this as a bug to Kaspersky. Unfortunately there isn't much that we can do if 3rd-party software is blocking our network access.

iffj · 2018-10-11T04:36:08Z

same here. In my case it was due to the Adguard I was using

pitw · 2018-10-11T07:25:43Z

Have same Problem with Kaspersky + Firestore.
@mikelehen @gamsterx Report to Kaspersky is done, hopefully they lower the restrictions.
https://forum.kaspersky.com/index.php?/topic/402132-kaspersky-blocks-firestore/

mikelehen · 2018-10-11T14:46:45Z

Thanks @pitw ! Much appreciated.

steelcorsy · 2018-10-15T00:46:20Z

Have same Problem with Kaspersky + Firestore.
@mikelehen @gamsterx Report to Kaspersky is done, hopefully they lower the restrictions.
https://forum.kaspersky.com/index.php?/topic/402132-kaspersky-blocks-firestore/

Response of Kaspersky:
According with some posts included on the link : The problem described happen

randomly and is Not only caused by kaspersky, but for other sources too..

So better contact "github.com" or Kaspersky Technical support

at this weblink : https://my.kaspersky.com/support

Then?

mikelehen · 2018-10-15T16:25:08Z

Perhaps somebody experiencing the issue can go ahead and follow the "Request Technical Support" button from https://my.kaspersky.com/support ? Be sure to let them know that at least 7 developers here are reporting that Kaspersky is preventing their Cloud Firestore apps from working and that adding https://firestore.googleapis.com/* to the trusted sites list works around the issue, but as an app developer, it's not a viable solution to ask all your customers to do that.

And if you can provide a simple site demonstrating the issue, it's probably more likely to get traction faster.

pitw · 2018-10-16T06:43:27Z

@mikelehen Its reported. We have now a trackable issue from Kasperksy. Will report here what they think.

Edit 1: They wanted some screenshots + demolinks. They got them; Now waiting how fast they are.
Edit 2: "Problem +Description transmitted to Moscow, product developement "...
Edit 3: Submitted 30 MB of Log files to Kaspersky as requested...waiting on final answer from product devs

Final Edit: Kaspersky opened Bug Nr. 3056440. Devs should fix this asap - then everything should work as expected.

pitw · 2019-07-01T10:42:13Z

And bug is here again...

@firebase/firestore: Firestore (5.11.0): Could not reach Cloud Firestore backend. Backend didn't respond within 10 seconds.
This typically indicates that your device does not have a healthy Internet connection at the moment. The client will operate in offline mode until it is able to successfully connect to the backend.

Happened after upgrading Kaspersky to 19.0.0.1088 (d)

I'm a little bit sceptical if that bug reallly is fixed...

anisabboud · 2019-07-01T11:38:37Z

@pitw hover over the Kaspersky icon.

Patch (f) is currently the latest version.
Try restarting your computer to see if Kaspersky got updated.

The bug was fixed in Patch (e).

pitw · 2019-07-01T11:53:43Z

You're right. Thanks.
Kaspersky complained about "not able to update Database" so my genious idea was to "reinstall" with loader from here: https://www.kaspersky.de/downloads/thank-you/internet-security-free-trial

After download, install, restart (1.Time), finish install... Version was still "D" but Database updates worked.
It needed another reboot (2.Time) to get D with Firebase Fix... ;)

anisabboud · 2019-07-01T12:08:51Z

I did the same thing :)
It showed (f) only after reboot.

danieldanielecki · 2019-07-28T17:53:55Z

The problem still exists on the Kaspersky Internet Security newest version...

mikelehen · 2019-07-29T20:30:09Z

@danieldanielecki Can you visit https://debug-my.firebaseapp.com and share your results (e.g. in a gist)? If this is really happening again, you (or somebody else) will likely need to reach out to Kaspersky as the issue had been solved (as noted in the above release notes and confirmed by several people on this thread).

pitw · 2019-08-02T08:00:40Z

@danieldanielecki As I'm almost paranoid now with Kaspersky + Firebase ;) I tried with several stations which were before concerned from bug.

If you move your mouse over the Kaspersky Icon does it look like this ?

As @anisabboud told above -> the (f) is important!

It should work then - double checked on our side (also with the very nice debug tool ;))

lborgman · 2019-08-03T10:46:17Z

I think I am affected by this issue as well. Could we please get a way to check (from JavaScript) that this error has occurred? (I can see it in the console, of course.)

That would make it possible to tell users.

mikelehen · 2019-08-03T22:51:05Z

@lborgman Unfortunately, as far as the SDK can tell, the issue is indistinguishable from just being offline or on a slow internet connection...

FWIW- That message is logged if our connection fails or (in the case of Kaspersky usually) doesn't succeed within 10 seconds. You could get a similar signal by just doing a documentReference.get({source: 'server'}) call from your code. If it fails, then you know the client wasn't able to reach the backend. But there's no way to know it's because of Kaspersky.

lborgman · 2019-08-04T11:34:18Z

@mikelehen Thanks, that looks nearly like what I want. I guess it is this?

https://firebase.google.com/docs/reference/android/com/google/firebase/firestore/Source

However it would be nice to be able to check if the result I got from my original query is from the server. Hm. Maybe there is some way to find out this already and I just have to read the docs?

schmidt-sebastian · 2019-08-05T18:32:05Z

@lborgman Both QuerySnapshot.getMetadata() and DocumentSnapshot.getMetadata() expose this via the SnapshotMetadata object. You can take a look at the isFromCache() property, which will be set to false if the snapshot was raised with data from the server.

mikelehen · 2019-08-05T21:02:37Z

FWIW- The corresponding JS SDK references are:
https://firebase.google.com/docs/reference/js/firebase.firestore.DocumentReference.html#get
https://firebase.google.com/docs/reference/js/firebase.firestore.GetOptions.html#source
https://firebase.google.com/docs/reference/js/firebase.firestore.DocumentSnapshot.html#metadata
https://firebase.google.com/docs/reference/js/firebase.firestore.SnapshotMetadata.html#fromcache

guillaumevincent · 2019-09-03T14:41:44Z

If it's fixed It's only fixed on Kaspersky 19+
Still have the problem on 18.0.0.405

pitw · 2019-09-12T16:17:30Z

I'm pretty sure that with KIS 20 (In theory: released after Patch F of KIS 19 which fixed the bug...) the same problem happens again.

andyfensham · 2019-09-13T06:19:43Z

Strange, I am only experiencing this in Chrome. Not in Firefox or Edge or IE. Also, I went to Settings->Clear history, cookies, cache and more and used the default values to clear the cache in Chrome. The moment I did it, it works. Please try and revert back

pitw · 2019-09-17T12:27:38Z

I don't know what exactly from KIS 20 causes the Issue but I'm 99% sure that Kaspersky is responsible for it. Tested on same machine: With Kaspersky 20 installed (Causes Firebase "Network issues"...) and with Kaspersky 20 completly removed (works perfect).

Beside our "beloved" known error "Could not reach Cloud Firestore backend. Backend didn't respond within 10 seconds"... with KIS 20 there's a second error on auth (without any more log infos):

Switching now back to KIS 19 where problem was solved.

Edit: I don't like unfinished stuff ;) So still tried to fix / find problem with KIS 20.
It looks like its solved by unchecking "Inject scripts into web traffic" described also in Known Issues here: https://support.kaspersky.com/14378#block1
All other solutions (white list, etc..) didnt help - this one does at least for me.

julianandrade · 2019-11-09T15:16:57Z

Same problem here since a week or two. Also Kaspersky...
When I first load the page the following error message is output (every single time):

@firebase/firestore: Firestore (5.5.0): Could not reach Cloud Firestore backend. Backend didn't respond within 10 seconds.

after 30+ seconds the data from firestore finally loads

XHR finished loading: POST "https://firestore.googleapis.com/google.firestore.v1beta1.Firestore/Listen/channel..."

If I reload the page and navigate to another page, where firestore data is loaded, I immediately get the data back without the error. 😕

If I pause Kaspersky the error does not occurr.
...
"@angular/fire": "^5.0.0",
"firebase": "^5.5.0",
...

I've experienced the exact same issue using firebase, firestore and vuejs.
I was using Kaspersky Endpoint Security 11.1

mikelehen · 2019-11-11T17:05:14Z

@julianandrade I'm not very familiar with Kaspersky products and versioning but based on e.g. #1190 (comment) I think the original issue was fixed in Kaspersky Antivirus 19.0.0.1088 patch E. I'm not sure how that relates to the Kaspersky Endpoint Security 11.1 that you are using.

For anybody running into issues with latest versions of Kaspersky software, I'd really encourage you to reach out to Kaspersky and remind them of:

"We have fixed an issue that sometimes caused Kaspersky Anti-Virus to block connections to the Google Cloud Firestore cloud database." from the 19.0.0.1088 patch E release notes
The prior investigation of this issue was associated with bug 3056440 on their end.

FYI- For folks that are running into this issue and need a workaround, you can try adding this at the start of your app using the current Firestore SDK:

firebase.firestore().settings({
  experimentalForceLongPolling: true
});

This forces the SDK to use a less-efficient long-polling mechanism that we believe works around proxies that buffer traffic indefinitely, like Kaspersky has done in the past.

pitw · 2019-11-11T17:32:28Z

@julianandrade @mikelehen The version Julian uses is the "business" version. All the settings we talked above can be either fixed in:

Kaspersky Security Console (if its hosted in local infrastructure)
Kaspersky Endpoint Security Cloud (if its the "cloud" variant)

If Julian don't have access to one of these --> theres no way to fix it from "user side" as usually the interesting settings are blocked by admin... 😁

julianandrade · 2019-11-12T11:47:53Z

@julianandrade I'm not very familiar with Kaspersky products and versioning but based on e.g. #1190 (comment) I think the original issue was fixed in Kaspersky Antivirus 19.0.0.1088 patch E. I'm not sure how that relates to the Kaspersky Endpoint Security 11.1 that you are using.

For anybody running into issues with latest versions of Kaspersky software, I'd really encourage you to reach out to Kaspersky and remind them of:

"We have fixed an issue that sometimes caused Kaspersky Anti-Virus to block connections to the Google Cloud Firestore cloud database." from the 19.0.0.1088 patch E release notes

The prior investigation of this issue was associated with bug 3056440 on their end.

FYI- For folks that are running into this issue and need a workaround, you can try adding this at the start of your app using the current Firestore SDK:
firebase.firestore().settings({
  experimentalForceLongPolling: true
});
This forces the SDK to use a less-efficient long-polling mechanism that we believe works around proxies that buffer traffic indefinitely, like Kaspersky has done in the past.

Yup, that setting worked. Thanks.

julianandrade · 2019-11-12T11:49:01Z

@julianandrade @mikelehen The version Julian uses is the "business" version. All the settings we talked above can be either fixed in:

Kaspersky Security Console (if its hosted in local infrastructure)

Kaspersky Endpoint Security Cloud (if its the "cloud" variant)

If Julian don't have access to one of these --> theres no way to fix it from "user side" as usually the interesting settings are blocked by admin... 😁

yes, it's a business version and I'll ask our helpdesk team to check the settings.
Thank you all.

DeniCarvalho · 2020-01-21T18:33:19Z

Guys, one solutions is usage Firestore REST

mattiagalati · 2020-07-01T08:44:43Z

We recently had the same problem with Kaspersky Endpoint version 11.
Using the proposed configuration experimentalForceLongPolling seems to have fixed the problem, but we are really thinking about the future of our Javascript applications: even if this is a Kaspersky issue, in more than a year, there was no step forward to completely solve it, also Google in its docs says

This setting may be removed in a future release

that said, we cannot plan to develop an application based on this SDK knowing that the workaround could be wiped out and our users could not being able to use our services anymore.

wilhuff · 2020-07-01T19:12:12Z

This setting may be removed in a future release

The intent of this phrase is that we may remove the option when the need for manually specifying this workaround is gone. Our intent is to fix the SDK to handle this case automatically. Only once that's the case will this option be removed.

mattiagalati · 2020-07-04T08:20:24Z

This setting may be removed in a future release

The intent of this phrase is that we may remove the option when the need for manually specifying this workaround is gone. Our intent is to fix the SDK to handle this case automatically. Only once that's the case will this option be removed.

Thank you @wilhuff , this is reassuring. May I suggest you to change the docs in order to reflect this intent?

google-oss-bot added the needs-triage label Sep 2, 2018

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Feiyang1 added api: firestore and removed needs-triage labels Sep 26, 2018

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pitw mentioned this issue Nov 25, 2019

FR : Fix chrome cookies warning (SameSite attribute) #2284

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rommelpe mentioned this issue Feb 3, 2020

Firestore Auth does not work in Cordova #2586

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firebase deleted a comment Jul 11, 2020

DellaBitta added question needs-attention labels Jun 7, 2023

Kaspersky antivirus breaks Firestore ("Could not reach Cloud Firestore backend.") #1190

Kaspersky antivirus breaks Firestore ("Could not reach Cloud Firestore backend.") #1190

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