Add sane error message for unreachable host

najax: method jqXHR.“getAllResponseHeaders” not implemented

Update

I’m observing the following error every time my fastboot ember app goes to a route with this.store.query():

najax: method jqXHR."getAllResponseHeaders" not implemented
[object Object]
    at Object.getAllResponseHeaders (/www/node_modules/najax/lib/najax.js:108:15)
    at ajaxResponseData (/www/tmp/broccoli_merge_trees-output_path-xxExqEhS.tmp/assets/addon-tree-output/ember-data/adapters/rest.js:1116:1)
    at ajaxErrorHandler (/www/tmp/broccoli_merge_trees-output_path-xxExqEhS.tmp/assets/addon-tree-output/ember-data/adapters/rest.js:1106:1)
    at Object.hash.error (/www/tmp/broccoli_merge_trees-output_path-xxExqEhS.tmp/assets/addon-tree-output/ember-data/adapters/rest.js:877:1)
    at fire (/www/node_modules/jquery-deferred/lib/jquery-callbacks.js:78:30)
    at Object.fireWith (/www/node_modules/jquery-deferred/lib/jquery-callbacks.js:188:7)
    at Object.fire [as reject] (/www/node_modules/jquery-deferred/lib/jquery-callbacks.js:195:10)
    at ClientRequest.onError (/www/node_modules/najax/lib/najax.js:208:9)
    at emitOne (events.js:116:13)
    at ClientRequest.emit (events.js:211:7)

On routes with multiple queries, I’m observing this message many times. It is flooding my logs.

The routes seem to work because Fastboot returns a non-fastboot page, which works.

This happens when the domain can be reached from the client, but cannot be reached from the Fastboot server.

Please add a more sane error message, as this makes it seem like the response is fine but something is wrong with the najax library.

---

Looks like this issue:

@kedano commented on Mar 3, 2016:

ember serve works just fine on the project and it looks like ember fastboot almost works as well except for one issue:

najax: method jqXHR."getAllResponseHeaders" not implemented

Except that issue was fixed five hundred two years ago. The current issue has a different cause.

---

$ cat node_modules/ember-cli-fastboot/package.json | grep \"version\":
  "version": "1.1.4-beta.1"

$ ./node_modules/.bin/ember version --verbose
ember-cli: 3.3.0
http_parser: 2.8.0
node: 8.12.0
v8: 6.2.414.66
uv: 1.19.2
zlib: 1.2.11
ares: 1.10.1-DEV
modules: 57
nghttp2: 1.32.0
napi: 3
openssl: 1.0.2p
icu: 60.1
unicode: 10.0
cldr: 32.0
tz: 2017c
os: linux x64

[ChristopheVandePoel]

I started getting the same error not so long ago. It happens on my VM, but not when I run it straight from my wsl console locally.

Internally, there’s a getaddrinfo EAI_AGAIN error that results in a getAllResponseHeaders call that fails. For me at least, it was caused by running on a VM that was named in my host-machine’s host-file, but not internally in the VM itself. So adding this line to the VM’s /etc/hosts file resolved the issue:

127.0.0.1       localhost.localdomain   localhost
::1             localhost6.localdomain6 localhost6
127.0.0.1       localhost.localdomain   your-custom-name-here   <- this one

[Redsandro]

I’ve run into the same problem because after 6 months apparently I forget things. 😅 I could have wasted less time if the actual problem would have a sane error message.

web_1    | najax: method jqXHR."getAllResponseHeaders" not implemented
web_1    | [object Object]
web_1    |     at Object.getAllResponseHeaders (/app/node_modules/najax/lib/najax.js:108:15)
web_1    |     at ajaxResponseData (/tmp/broccoli-16muhuEbMsaNDx/out-326-broccoli_merge_trees/assets/addon-tree-output/ember-data/adapters/rest.js:1146:1)
web_1    |     at ajaxErrorHandler (/tmp/broccoli-16muhuEbMsaNDx/out-326-broccoli_merge_trees/assets/addon-tree-output/ember-data/adapters/rest.js:1136:1)
web_1    |     at Object.hash.error (/tmp/broccoli-16muhuEbMsaNDx/out-326-broccoli_merge_trees/assets/addon-tree-output/ember-data/adapters/rest.js:884:1)
web_1    |     at fire (/app/node_modules/jquery-deferred/lib/jquery-callbacks.js:78:30)
web_1    |     at Object.fireWith (/app/node_modules/jquery-deferred/lib/jquery-callbacks.js:188:7)
web_1    |     at Object.fire [as reject] (/app/node_modules/jquery-deferred/lib/jquery-callbacks.js:195:10)
web_1    |     at ClientRequest.onError (/app/node_modules/najax/lib/najax.js:208:9)
web_1    |     at emitOne (events.js:116:13)
web_1    |     at ClientRequest.emit (events.js:211:7)

Most of the nAjax stuff was written by @danmcclain over 3 years ago. Any thoughts on this issue?