Storybook: Warning: Received `true` for a non-boolean attribute `loading`.

[HiHiPoBang]

Describe the bug
At the console: Warning: Received true for a non-boolean attribute loading.

To Reproduce
Steps to reproduce the behavior:

1. vue create my-project
2. npx -p @storybook/cli sb init --type vue
3. Then follow the doc from https://storybook.js.org/docs/guides/guide-vue/

repo: https://github.com/HiHiPoBang/storybook-demo

Expected behavior
No error log

Screenshots

System:

• OS: [MacOS]
• Device: [iMac 2017]
• Browser: [chrome]
• Framework: [vue]
• Addons: [all]
• Version: [5.1.3]

[gorilazish]

I get this one as well on React project (Storybook 5.1.3)

[Nightbr]

I get it also on HTML (stenciljs)

    "@storybook/addon-actions": "^5.1.3",
    "@storybook/addon-backgrounds": "^5.1.3",
    "@storybook/addon-knobs": "^5.1.3",
    "@storybook/addon-notes": "^5.1.3",
    "@storybook/html": "^5.1.3",
    "@storybook/theming": "^5.1.3",

[neil-morrison44]

Seeing this as well with a react storybook with the following deps:

    "@storybook/addon-actions": "^5.1.3",
    "@storybook/addon-backgrounds": "^5.1.3",
    "@storybook/addon-knobs": "^5.1.3",
    "@storybook/addon-storyshots": "^5.1.3",
    "@storybook/addon-storysource": "^5.1.3",
    "@storybook/addon-viewport": "^5.1.3",
    "@storybook/react": "^5.1.3",

Interestingly storyshots runs the storybook fine - it'd have been caught in our tests if they were both affected

[vlaraort]

getting this too

[fantun3s]

getting this as well :/

    "@storybook/addons": "5.1.3",
    "@storybook/addon-a11y": "5.1.3",
    "@storybook/addon-actions": "5.1.3",
    "@storybook/addon-knobs": "5.1.3",
    "@storybook/react": "5.1.3",

[joselcvarela]

I am also experiencing this using Angular.

    "@storybook/addon-actions": "^5.1.3",
    "@storybook/addon-links": "^5.1.3",
    "@storybook/addon-notes": "^5.1.3",
    "@storybook/addons": "^5.1.3",
    "@storybook/angular": "^5.1.3",

[Turkyden]

@HiHiPoBang Yeah, i get it error in react project too. Could you help me ?

[HiHiPoBang]

@Turkyden
Sorry, I use Vue.js and search the similar problems are also with react, so I guess it' s a bug of storybook.

[drichar]

Getting this as well with React

"@storybook/addon-actions": "^5.0.11",
"@storybook/addon-knobs": "^5.1.3",
"@storybook/addon-links": "^5.0.11",
"@storybook/addons": "^5.0.11",
"@storybook/react": "^5.0.11",

[B3Kay]

I get this problem aswell with React

"react": "^16.4.0",
"react-dom": "^16.4.0"

 "@storybook/addon-links": "^5.0.11",
 "@storybook/addon-notes": "^5.0.11",
 "@storybook/addon-storyshots": "^5.0.11",
 "@storybook/addon-storyshots-puppeteer": "^5.0.11",
 "@storybook/addon-storysource": "^5.0.11",
 "@storybook/addons": "^5.0.11",

[magnusottosson]

I downgraded from 5.1.3 to 5.0.11 (which worked perfect before) today but I still get the error message. Could it be a dependancy package that has changed maybe?

[ndelangen]

I'm on it

[Turkyden]

@Turkyden
Sorry, I use Vue.js and search the similar problems are also with react, so I guess it' s a bug of storybook.

哈哈，原来是台湾同胞，你好噢！可惜我现在用的是 react 版的，但是和你遇到的是同样的问题，这个 bug 后来你找到解决方案了吗？

[HiHiPoBang]

@Turkyden Not yet, 但上面看來已修正準備merge了

[ndelangen]

Is anyone able to give me a repo, that they are experiencing this on? I'm having a hard time tracking/reproducing this in our own repo. I did issue a PR already which I THINK MAY fix it, but I'd like to be sure tbh.

[HiHiPoBang]

Is anyone able to give me a repo, that they are experiencing this on? I'm having a hard time tracking/reproducing this in our own repo. I did issue a PR already which I THINK MAY fix it, but I'd like to be sure tbh.

Hi, you can try this:
https://github.com/HiHiPoBang/storybook-demo

[ndelangen]

My hero, I'm cloning it now

[ndelangen]

YES, I found the issue!

React StrictMode + passing a prop down to a dom-element which it kinda understand, but not really.

[ndelangen]

@shilman This requires a patch release from our part to fix for users, I'm opening a PR now

[ndelangen]

@HiHiPoBang send me your address in a private convo on discord and I'll send you a batch of swag
🤜🤛

discord invite link:
https://discord.gg/sMFvFsG

[ndelangen]

PR is open, anyone feel like reviewing it?

[lPaths]

does the bug fixed anyone? i still getting this warning!

[shilman]

w00t!! I just released https://github.com/storybookjs/storybook/releases/tag/v5.1.5 containing PR #7073 that references this issue. Upgrade today to try it out!

Closing this issue. Please re-open if you think there's still more to do.

[chrisdrackett]

I'm still getting the issue on 5.1.5 myself. I can confirm that the loading state does seem to work now, but when its done I have the same error in my console.

[mkochendorfer]

I am also still seeing this issue in 5.1.5. Looks like https://github.com/storybookjs/storybook/pull/7080 which is the PR that solves this was not actually in the 5.1.5 release. Perhaps @shilman or @ndelangen can clarify this.

[shilman]

Ack. The PR was not marked with patch cc @ndelangen

Re-releasing now

[shilman]

Son of a gun!! I just released https://github.com/storybookjs/storybook/releases/tag/v5.1.7 containing PR #7080 that references this issue. Upgrade today to try it out!

Closing this issue. Please re-open if you think there's still more to do.

[mkochendorfer]

That did the trick. 5.1.7 is working well.

[joselcvarela]

https://github.com/storybookjs/storybook/issues/7049#issuecomment-500937713

Version 5.1.7 worked for me

[numericgraphics]

Version 5.1.8 storybook/html, opening viewport addons displayed the error --> Warning: Received false for a non-boolean attribute loading.

[ndelangen]

@numericgraphics are you able to reproduce here:
https://monorepo.storybook.now.sh/examples/html-kitchen-sink/?path=/story/welcome--welcome

I'm not, so what am I doing wrong?
Can you give me a bit more detail on how to reproduce the problem?

[Yankovsky]

I have same issue as well. You've fixed the issue for lib/ui/src/components/sidebar/SidebarItem.js but I get it for ListItem

[JosephHalter]

This issue is already closed. Please refer to https://github.com/storybookjs/storybook/issues/7219 to follow progress on the similar issue in newer versions of Storybook rather than add to this already very long ticket.

[Silverium]

In my case, it was the cookies. Removed all cookies and all cached storage, and automagically Addons tab shows again!