evanw/node-source-map-support

'Uncaught ReferenceError: process is not defined' in Chrome

Open

#262 创建于 2019年11月21日

在 GitHub 查看
 (2 评论) (0 反应) (0 负责人)JavaScript (2,078 star) (242 fork)batch import
bughelp wanted

描述

I do get an 'Uncaught ReferenceError: process is not defined' error in Chrome since version 0.5.15. It seems to be caused by issue #255, commit a64d497 line 362 in source-map-support.js Chrome Version 78.0.3904.97 (Official Build) (64-bit) node 10.5.0/10.17.0 Problem did not occur for me in FireFox, Edge, Safari. Only in Chrome.

贡献者指南

技术栈
javascriptnodejs
领域
backend
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
familiarity with Node.js process globalknowledge of browser environment
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
65
研究方向
The bug is introduced in commit a64d497 at line 362 of source map support.js, where `process` is used without a guard. The error occurs in Chrome because `process` is not defined. To fix, add a check for `typeof process !== 'undefined'` before accessing `process.env`. Alternatively, consider bundling with a webpack define plugin to replace `process` references. Check the issue comments for any context about the intended behavior. Then create a pull request that conditionally uses `process` only when available.