[DEP0066] DeprecationWarning: OutgoingMessage.prototype._headers is deprecated when Browsersync: Connected

[kevinmamaqi]

Issue details

As soon as I connect to the server (localhost:3000) I received the following message:
(node:37943) [DEP0066] DeprecationWarning: OutgoingMessage.prototype._headers is deprecated

Steps to reproduce/test case

Use node, npm and gulp as indicated below. All the tasks load properly, but when connected with browser-sync at localhost:3000 node sends the DEP0066 message and it stops working.

Please specify which version of Browsersync, node and npm you're running

• Browsersync [ 2.26.5 ]
• Node [ 12.1.0 ]
• Npm [ 6.9.0 ]

Affected platforms

• linux
• windows
• OS X
• freebsd
• solaris
• other (please specify which)

Browsersync use-case

• API
• Gulp
• Grunt
• CLI

for all other use-cases, (gulp, grunt etc), please show us exactly how you're using Browsersync

function browsersync(){
  browserSync.init( {
    proxy: projectURL,
    open: false,
    injectChanges: true,
  } );
};

gulp.task( 'default', gulp.series(styles, php, phpDIST, vendorsJS, customJS, images, browsersync, watchTask));

[suhailkc]

I have the same problem

[kevinmamaqi]

Hey @suhailkc I had to downgrade to node 10.15.3 LTS to solve it.

[XhmikosR]

It's just a warning, so it seems we can ignore it for now. But it'd be nice if this was fixed at some point @shakyShane :)

[XhmikosR]

https://nodejs.org/api/deprecations.html#deprecations_dep0066_outgoingmessage_headers_outgoingmessage_headernames

I'd submit a PR, but I'm not familiar with the codebase.

[hewentaowx]

I have the same problem，what is the solution?

[XhmikosR]

You ignore the warning, or wait, or use Node.js < 12.x.

[hewentaowx]

thanks！

[revelt]

for the record, the DEP0066 message does appear but reloading continues to work, I'm able to use node 12.3.0 to run browser-sync 2.26.5.

Original post implies "it stops working" but I can see things refreshing on my machine! I'm using Gulp and browserSync mostly copy-pasted from official examples, the .pipe(browserSync.stream()); and all.

I'm not denying existence of your issue, I'm saying maybe something is wired up not the right way if refreshing is not happening?

Either way, I hope the API will be updated soon and DEP0066 error will disappear. 👍

[yahacom]

Same warning on browserSync 2.26.5 with node 12.3.1 on windows platform.

[YJPL]

Same warning using browserSync 2.26.5 with node 12.4.0 on macOS 10.14.5

[suhailkc]

Fixed by updating "browser-sync": "^2.26.7".

[fedulovivan]

For someone who came here for solution:
Issue may be fixed with upgrading express package to v4.17.1 (we are on node 12.13.0)

[ermannos]

I'm working with express v4.17.1 and node 12.13.1 and for me the problem is still present

[Arjunalapsapkota]

Same is the case for me : express v4.17.1 and node 12.13.1 . What is the solution?

[nanthanwa]

If you come here from Google, you can fix them by upgrade express to version 4.17.1 then an error has gone.