Apollo-client-devtools: Apollo shows up in list in Chrome dev tools but doesn't load

[wildpow]

Inspected the inspector like the readme says and this is the error I get.
Uncaught DOMException: Failed to read the 'localStorage' property from 'Window': Access is denied for this document. at Object.<anonymous> (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/dist/index_bundle.js:93369:13) at __webpack_require__ (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/dist/index_bundle.js:20:30) at Object.<anonymous> (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/dist/index_bundle.js:70:23) at __webpack_require__ (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/dist/index_bundle.js:20:30) at Object.<anonymous> (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/dist/index_bundle.js:47:19) at __webpack_require__ (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/dist/index_bundle.js:20:30) at chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/dist/index_bundle.js:40:18 at chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/dist/index_bundle.js:43:10

[neurofoo]

I'm having the same issue. I have one line above what you wrote, which is:

Uncaught DOMException: Failed to read the 'localStorage' property from 'Window': Access is denied for this document.

Seems to be an issue with the iframe not being able to access localStorage. I tried allowing third parties to set cookies in the chrome settings, but still no luck.

[neurofoo]

So. Allowing third-parties does work... sometimes. I have to reload the page several times. Once in a while the 'A' icons turns black and I can see the tools. Not optimal.

[matthew-gordon]

I was having the same problem. Apollo dev tools had previously worked seamlessly, until I blocked third party cookies. Couldn't figure out the issue either until undocking the dev tools, inspecting the devtools, and finding the

Uncaught DOMException: Failed to read the 'localStorage' property from 'Window': Access is denied for this document.

I allowed third party cookies, then cleared my local storage. Dev tools reconnected to my graphql api and is now working as expected.

pretty tricky to diagnose. Thanks @neurofoo, Not optimal.

[WizardOfOgz]

I did not want to grant all sites third party sites access to cookies by default, so I allowed an exception for just the Apollo Devtools extension chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/.

[basicdays]

@WizardOfOgz is the true wizard on this one. I knew there should have been a way to whitelist the extension, I just had no idea what incantation was needed to allow it through. I can now keep 3rd party cookies blocked, and still use this extension. This really should be added to the documentation somewhere.

To detail the fix on Chrome, go to the following URL to fix the error:
chrome://settings/content/cookies

And add the following for the extension under Allow:
chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/

[justinanastos]

This one seems to keep popping up! Thanks for everyone's help in finding a temporary solution until we resolve #118. In the meantime I'm going to close this as a duplicate. Thanks again!