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Fix crash during server render in React 16.6.0 #14103

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tnunes
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@tnunes tnunes commented Nov 5, 2018

This fixes a bug introduced in React 16.6.0, which was not present in 16.5.2.

Runtimes without setTimeout and clearTimeout (e.g. ClearScript for .NET) are now crashing just by importing react-dom.

This replicates the fix for scheduler introduced in #13088 for react-dom, by checking for existence of setTimeout and clearTimeout in the runtime before using them.

Check for existence of `setTimeout` and `clearTimeout` in the runtime
before using them, to ensure runtimes without them (like .NET ClearScript)
do not crash just by importing `react-dom`.
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sizebot commented Nov 5, 2018

ReactDOM: size: 🔺+0.1%, gzip: 0.0%

Details of bundled changes.

Comparing: ce90ffd...461eb5a

react-dom

File Filesize Diff Gzip Diff Prev Size Current Size Prev Gzip Current Gzip ENV
react-dom.development.js 0.0% +0.1% 704.66 KB 704.94 KB 163.29 KB 163.39 KB UMD_DEV
react-dom.production.min.js 🔺+0.1% 0.0% 102.61 KB 102.68 KB 33.57 KB 33.58 KB UMD_PROD
react-dom.development.js 0.0% +0.1% 699.97 KB 700.25 KB 161.92 KB 162.01 KB NODE_DEV
react-dom.production.min.js 🔺+0.1% 0.0% 102.7 KB 102.77 KB 33.11 KB 33.12 KB NODE_PROD
ReactDOM-dev.js 0.0% +0.1% 718.45 KB 718.73 KB 162.77 KB 162.87 KB FB_WWW_DEV
ReactDOM-prod.js 0.0% 0.0% 310.69 KB 310.78 KB 57.39 KB 57.4 KB FB_WWW_PROD
react-dom.profiling.min.js +0.1% 0.0% 105.06 KB 105.13 KB 33.41 KB 33.43 KB NODE_PROFILING
ReactDOM-profiling.js 0.0% 0.0% 314.97 KB 315.06 KB 58.28 KB 58.29 KB FB_WWW_PROFILING
react-dom.profiling.min.js +0.1% +0.1% 104.93 KB 105 KB 33.9 KB 33.93 KB UMD_PROFILING

scheduler

File Filesize Diff Gzip Diff Prev Size Current Size Prev Gzip Current Gzip ENV
scheduler.development.js n/a n/a 0 B 19.17 KB 0 B 5.74 KB UMD_DEV
scheduler.production.min.js n/a n/a 0 B 3.16 KB 0 B 1.53 KB UMD_PROD

Generated by 🚫 dangerJS

@gaearon gaearon merged commit b305c4e into facebook:master Nov 5, 2018
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gaearon commented Nov 5, 2018

Thanks

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tnunes commented Nov 6, 2018

Thank you @gaearon. Any ETA on when 16.6.1 (and the next 16.7 alpha) will be released?

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gaearon commented Nov 6, 2018

Soon-ish

jetoneza pushed a commit to jetoneza/react that referenced this pull request Jan 23, 2019
Check for existence of `setTimeout` and `clearTimeout` in the runtime
before using them, to ensure runtimes without them (like .NET ClearScript)
do not crash just by importing `react-dom`.
n8schloss pushed a commit to n8schloss/react that referenced this pull request Jan 31, 2019
Check for existence of `setTimeout` and `clearTimeout` in the runtime
before using them, to ensure runtimes without them (like .NET ClearScript)
do not crash just by importing `react-dom`.
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4 participants