Webpack 模块警告：无法从“数据”URL 解析源映射

Question

Webpack 模块警告：无法从“数据”URL 解析源映射

jar*_*sup 37 javascript source-maps webpack

我收到了一个令人沮丧的警告，并且无法找到可用的解决方案：

WARNING in ../lensing/dist/main.js
Module Warning (from ./node_modules/source-map-loader/dist/cjs.js):
Failed to parse source map from "data" URL: data:application/json;charset=utf-8;base64,eyJ2ZXJza [...]

Run Code Online (Sandbox Code Playgroud)

我的 webpack.config.js 看起来像（npm 模块的设置）：

module.exports = {
    entry: './src/index.js',
    output: {
        filename: 'main.js',
        path: path.resolve(__dirname, 'dist'),
        library: 'lensing',
        libraryTarget: 'umd',
        umdNamedDefine: true
    },
    module: {
        rules: [
            {
                test: /\.m?js$/,
                exclude: /(node_modules|bower_components)/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['@babel/preset-env'],
                        plugins: [
                            '@babel/plugin-proposal-class-properties'
                        ]
                    }
                }
            },
            {
                test: /\.js$/,
                enforce: 'pre',
                use: ['source-map-loader'],
            },
            {
                test: /\.(png|jpg|gif|svg)$/i,
                use: [
                    {
                        loader: 'url-loader',
                        options: {
                            limit: 8192,
                        },
                    },
                ],
            }
        ]
    },
    stats: {
        warningsFilter: [/Failed to parse source map/],
    },
};

Run Code Online (Sandbox Code Playgroud)

我很惊讶在这个特定问题上没有找到太多其他内容，并且担心我错过了一些通常很简单的东西。我很高兴包含任何其他可能有用的代码片段，但我希望错误代码可能是一个强有力的指示器。

任何建议都将受到热烈欢迎！

编辑-更多上下文：

Version: webpack 4.43.0
Time: 6561ms
Built at: 07/31/2020 11:20:55 AM
                               Asset       Size  Chunks             Chunk Names
aafa1b05e4b76ffd04c1fe92edbf15f2.svg  654 bytes          [emitted]  
                             main.js    3.6 MiB    main  [emitted]  main
Entrypoint main = main.js
[0] multi (webpack)-dev-server/client?http://localhost:9000 ./src/index.js 40 bytes {main} [built]
[../lensing/dist/main.js] 2.46 MiB {main} [built] [1 warning]
[./node_modules/openseadragon/build/openseadragon/openseadragon.js] 674 KiB {main} [built]
[./node_modules/webpack-dev-server/client/index.js?http://localhost:9000] (webpack)-dev-server/client?http://localhost:9000 4.29 KiB {main} [built]
[./node_modules/webpack-dev-server/client/overlay.js] (webpack)-dev-server/client/overlay.js 3.51 KiB {main} [built]
[./node_modules/webpack-dev-server/client/socket.js] (webpack)-dev-server/client/socket.js 1.53 KiB {main} [built]
[./node_modules/webpack-dev-server/client/utils/createSocketUrl.js] (webpack)-dev-server/client/utils/createSocketUrl.js 2.91 KiB {main} [built]
[./node_modules/webpack-dev-server/client/utils/log.js] (webpack)-dev-server/client/utils/log.js 964 bytes {main} [built]
[./node_modules/webpack-dev-server/client/utils/reloadApp.js] (webpack)-dev-server/client/utils/reloadApp.js 1.59 KiB {main} [built]
[./node_modules/webpack-dev-server/client/utils/sendMessage.js] (webpack)-dev-server/client/utils/sendMessage.js 402 bytes {main} [built]
[./node_modules/webpack-dev-server/node_modules/strip-ansi/index.js] (webpack)-dev-server/node_modules/strip-ansi/index.js 162 bytes {main} [built]
[./node_modules/webpack/hot sync ^\.\/log$] (webpack)/hot sync nonrecursive ^\.\/log$ 170 bytes {main} [built]
[./src/PIA23533_index32.csv] 622 bytes {main} [built]
[./src/index.css] 519 bytes {main} [built]
[./src/index.js] 1.69 KiB {main} [built]
    + 27 hidden modules

WARNING in ../lensing/dist/main.js
Module Warning (from ./node_modules/source-map-loader/dist/cjs.js):
Failed to parse source map from "data" URL: data:application/json;charset=utf-8;base64,{"version":3,"file":"./src/viewfinder.js.js","sources":["webpack://lensing/./src/viewfinder.js?b5ef"],"sourcesContent":["import * as d3 from 'd3';\n\n/**\n * @class Viewfinder\n */\nexport default class Viewfinder {\n\n    // Class refs\n    lensing = null;\n\n    // Data\n    data = null;\n    on = false;\n\n    // Elements\n    els = {\n        dataPointG: null,\n        g: null,\n        radialG: null,\n        svg: null,\n        boxG: null\n    };\n\n    // Configs\n    configs = {\n        boxW: 150,\n        boxH: 50,\n        deg: 0,\n        extend: 200,\n        gMargin: {top: 0, left: 0, right: 0, bottom: 0},\n        gH: 0,\n        gW: 0,\n        h: 0,\n        r: 0,\n        rPointer: 0,\n        rPointerExt: 25,\n        w: 0,\n    };\n\n    // Tools - TODO add boxScale to trace perimeter\n    tools = {\n        coordScale: d3.scaleLinear()\n            .domain([0, 360])\n            .range([Math.PI, -Math.PI]),\n        lineMaker: d3.line(),\n        xScale: d3.scaleLinear(),\n        yScale: d3.scaleLinear()\n    }\n\n    /*\n    Constructor\n     */\n    constructor(_lensing) {\n        // Fields\n        this.lensing = _lensing;\n\n        // Init\n        this.init();\n    }\n\n    /**\n     * 1.\n     * @function init\n     *\n     */\n    init() {\n        // Define this\n        const vis = this;\n\n        // Build svg, g\n        vis.els.svg = d3.select(vis.lensing.overlay.container)\n            .append('svg');\n        vis.els.g = vis.els.svg.append('g')\n            .attr('class', 'viewfinder_g')\n            .style('transform', `translate(${vis.configs.gMargin.top}px, ${vis.configs.gMargin.left}px)`);\n\n        // Attach component g's\n        vis.els.radialG = vis.els.g.append('g')\n            .attr('class', 'viewfinder_radial_g');\n        vis.els.dataPointG = vis.els.radialG.append('g')\n            .attr('class', 'viewfinder_data_point_g');\n        vis.els.dataPointG.append('path')\n            .attr('fill', 'none')\n            .attr('stroke', 'rgba(255, 255, 255, 1)')\n            .style('transform', 'translate3d(0, 0, 0)');\n        vis.els.boxG = vis.els.dataPointG.append('g')\n            .attr('class', 'viewfinder_box_g')\n            .style('transform', 'translate3d(0, 0, 0)')\n            .style('visibility', 'hidden');\n        vis.els.boxG.append('rect')\n            .attr('width', vis.configs.boxW)\n            .attr('height', vis.configs.boxH)\n            .attr('fill', 'none')\n            .attr('stroke', 'rgba(255, 255, 255, 1)')\n            .attr('stroke-width', '0.5px');\n        vis.els.boxG.append('text')\n            .attr('class', 'viewfinder_box_text viewfinder_box_text_a')\n            .attr('fill', 'white')\n            .attr('x', `${vis.configs.boxW / 2}px`)\n            .attr('y', `${Math.round(vis.configs.boxH / 3)}px`)\n            .attr('text-anchor', 'middle')\n            .attr('alignment-baseline', 'middle')\n            .style('font-family', 'sans-serif')\n            .style('font-size', '12px')\n            .style('font-weight', 'lighter');\n        vis.els.boxG.append('text')\n            .attr('class', 'viewfinder_box_text viewfinder_box_text_b')\n            .attr('fill', 'white')\n            .attr('x', `${vis.configs.boxW / 2}px`)\n            .attr('y', `${Math.round(vis.configs.boxH * 2 / 3)}px`)\n            .attr('text-anchor', 'middle')\n            .attr('alignment-baseline', 'middle')\n            .style('font-family', 'sans-serif')\n            .style('font-size', '11px')\n            .style('font-style', 'italic')\n            .style('font-weight', 'lighter');\n\n    }\n\n    /**\n     * @function wrangle\n     *\n     */\n    wrangle() {\n        // Define this\n        const vis = this;\n\n        // Update data\n        vis.data = this.lensing.configs.pxData;\n\n        // Update configs\n        vis.configs.r = vis.lensing.configs.rad / vis.lensing.configs.pxRatio;\n        vis.configs.rPointer = vis.configs.r + vis.configs.rPointerExt;\n        vis.configs.w = vis.configs.h = (vis.configs.r + vis.configs.extend) * 2;\n        vis.configs.gW = vis.configs.w - (vis.configs.gMargin.right + vis.configs.gMargin.left);\n        vis.configs.gH = vis.configs.h - (vis.configs.gMargin.top + vis.configs.gMargin.bottom);\n\n        // Check coordinate position\n        const x = this.lensing.configs.pos[0] / vis.lensing.configs.pxRatio - this.lensing.viewer.canvas.clientWidth / 2;\n        const y = this.lensing.configs.pos[1] / vis.lensing.configs.pxRatio - this.lensing.viewer.canvas.clientHeight / 2;\n        vis.deg = Math.atan2(y, x) * (180 / Math.PI);\n\n        // Update tools\n        vis.tools.xScale\n            .domain([-vis.configs.rPointer, vis.configs.rPointer])\n            .range([-vis.configs.boxW, 0]);\n        vis.tools.yScale\n            .domain([-vis.configs.rPointer, vis.configs.rPointer])\n            .range([-vis.configs.boxH, 0]);\n\n        // Render\n        vis.render();\n    }\n\n    /**\n     * @function render\n     *\n     */\n    render() {\n        // Define this\n        const vis = this;\n\n        if (vis.on) {\n\n            // Update svg, g\n            vis.els.svg.attr('width', vis.configs.w)\n                .attr('height', vis.configs.h)\n                .attr('style', `position: absolute; left: ${-vis.configs.extend}px; top: ${-vis.configs.extend}px;`)\n\n            // Update radialG\n            vis.els.radialG.style('transform', `translate(${vis.configs.gW / 2}px, ${vis.configs.gH / 2}px)`)\n\n            // Update dataPointG\n            vis.els.dataPointG\n                .datum(vis.data)\n                .each(function (d) {\n                    const g = d3.select(this);\n\n                    // Pointer coords\n                    const pCoords = getCoords(vis.configs.rPointer, vis.deg - 90);\n                    const addX = Math.round(vis.tools.xScale(pCoords[0]));\n                    const addY = Math.round(vis.tools.yScale(pCoords[1]));\n\n                    // Update path\n                    g.select('path')\n                        .attr('d', vis.tools.lineMaker([[0, 0], pCoords]));\n\n                    // Update boxG visibility, pos\n                    vis.els.boxG.style('visibility', 'visible');\n                    vis.els.boxG.style('transform', `translate(${pCoords[0] + addX}px, ${pCoords[1] + addY}px)`);\n                });\n\n            /* getCoords */\n            function getCoords(r, i) {\n                const x = Math.round(r * Math.sin(vis.tools.coordScale(i)));\n                const y = Math.round(r * Math.cos(vis.tools.coordScale(i)));\n                return [x, y];\n            }\n        } else {\n\n            // Hide\n            vis.els.boxG.style('visibility', 'hidden');\n        }\n\n    }\n\n    /**\n     * @function update_box_text\n     * Updates the text from data\n     *\n     * @param {Object} d\n     *\n     */\n    update_box_test(d) {\n        // Define this\n        const vis = this;\n\n        // Update\n        vis.els.boxG.select('.viewfinder_box_text_a')\n            .text(`Color Index #${d.index}`);\n        vis.els.boxG.select('.viewfinder_box_text_b')\n            .text(`rgb(${d.r}, ${d.g}, ${d.b})`);\n    }\n\n\n}"],"mappings":";;;;;;;;;;;AAAA;AAEA;;;;AAGA;AAEA;AAGA;AAIA;AASA;AAgBA;AACA;AASA;;;AAGA;AAAA;AACA;AADA;AACA;AADA;AACA;AADA;AACA;AADA;AApCA;AACA;AACA;AACA;AACA;AALA;AACA;AAoCA;AA3BA;AACA;AACA;AACA;AACA;AAAA;AAAA;AAAA;AAAA;AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AAZA;AACA;AA2BA;AAXA;AAGA;AACA;AACA;AANA;AACA;AAYA;AACA;AACA;AAEA;AACA;AAEA;;;;;;;;;AAKA;AACA;AACA;AACA;AAEA;AAEA;AACA;AAIA;AAEA;AAEA;AAIA;AAIA;AAMA;AAUA;AAYA;AAEA;;;;;;;AAIA;AACA;AACA;AACA;AAEA;AACA;AAEA;AACA;AACA;AACA;AACA;AACA;AAEA;AACA;AACA;AACA;AAEA;AAGA;AACA;AAIA;AACA;AAEA;;;;;;;AAIA;AACA;AACA;AACA;AACA;AA8BA;AA9BA;AAgCA;AACA;AACA;AACA;AACA;AAlCA;AACA;AACA;AAIA;AACA;AAEA;AAGA;AACA;AAEA;AACA;AACA;AACA;AAEA;AACA;AAGA;AACA;AACA;AAQA;AAEA;AACA;AACA;AAEA;AAEA;;;;;;;;;;AAOA;AACA;AACA;AACA;AAEA;AAEA;AAEA;;;;;;","sourceRoot":""}\n//#
 @ ./src/index.js 3:0-29 65:19-30

Run Code Online (Sandbox Code Playgroud)

Answer 1

Rog*_*rez 39

react-scripts如果您在使用/cra version时遇到此问题5.0.0。您需要将以下内容添加到您的.env文件中

\n

注意：这不是修复。您正在抑制源映射警告，但它可能会让您看不到这些警告，因为所有其他解决方案都不起作用。

\n

GENERATE_SOURCEMAP=false

\n

或者您可以将脚本更新为

\n

"start": "GENERATE_SOURCEMAP=false react-scripts start",\n

Run Code Online (Sandbox Code Playgroud)\n

注意：5.0.1这是发布之前的临时补丁。\n请参阅 create-react-app 存储库拉取请求\n更新： 5.0.1 于 2022 年 4 月发布。变更日志。该更新没有修复这个问题。不确定什么时候会是 \xe2\x80\x8d\xe2\x99\x82\xef\xb8\x8f

\n

uhm 源地图有一个目的，不生成它们会破坏许多开发流程 (9认同)
很清楚这一点，但我现在无法修复，而不是收到 200 多个警告，这是一个公平的替代补丁，直到“5.0.1”发布 (2认同)

Answer 2

Fro*_*iwi 30

更好的方法。以下内容保留了源地图，并且仅删除了垃圾邮件警告。来自文档

module.exports = {
  module: {
    rules: [
      {
        test: /\.js$/,
        enforce: "pre",
        use: ["source-map-loader"],
      },
    ],
  },
  ignoreWarnings: [/Failed to parse source map/],
};

Run Code Online (Sandbox Code Playgroud)

Answer 3

Jas*_*onS 13

我也有同样的问题。

这不是一个解决方案，而是比其他“答案”更好的解决方法：

将 source-map-loader 的 module.rules 设置更改webpack.config.js为：

//module.rules:[
            {
                    test: /\.js$/,
                    enforce: 'pre',
                    use: [
                        {
                            //needed to chain sourcemaps.  see: https://webpack.js.org/loaders/source-map-loader/
                            loader: 'source-map-loader',
                            options: {

                                filterSourceMappingUrl: (url, resourcePath) => {
                                    //  console.log({ url, resourcePath }) example:
                                    // {
                                    //  url: 'index.js.map',
                                    //  resourcePath: '/repos/xlib-wsl/common/temp/node_modules/.pnpm/https-proxy-agent@5.0.0/node_modules/https-proxy-agent/dist/index.js'
                                    // }

                                    if (/.*\/node_modules\/.*/.test(resourcePath)) {
                                        return false
                                    }
                                    return true
                                }

                            }
                        }],
                },

Run Code Online (Sandbox Code Playgroud)

也就是说，不要加载 node_module 依赖项的源映射。

所选答案明确指出，“如果您正在使用react-scripts/cra”，这意味着您无法访问 webpack 配置。 (2认同)

Answer 4

小智 10

{
    test: [/\.js?$/, /\.ts?$/, /\.jsx?$/, /\.tsx?$/],
    enforce: 'pre',
    exclude: /node_modules/,
    use: ['source-map-loader'],
},

Run Code Online (Sandbox Code Playgroud)

将其包含到配置文件中并下载source-map-loader作为开发依赖项

Answer 5

小智 8

添加到上面的解决方案中，当使用create-react-app已添加时react-app-rewired，customize-cra您还可以摆脱源映射警告更新config-overrides.js和设置ignoreWarnings

const { override } = require("customize-cra");

const ignoreWarnings = value => config => {
  config.ignoreWarnings = value;
  return config;
};

module.exports = override(
  ignoreWarnings([/Failed to parse source map/])
);

Run Code Online (Sandbox Code Playgroud)

Answer 6

Vir*_*ngh 8

扩展 FrozenKiwi 对Craco的回答

// craco.config.js
module.exports = {
    reactScriptsVersion: "react-scripts" /* (default value) */,
    webpack: {
        mode: 'extends',
        configure: {
            module: {
                rules: [
                    {
                        test: /\.js$/,
                        enforce: "pre",
                        use: ["source-map-loader"],
                    },
                ],
            },
            ignoreWarnings: [/Failed to parse source map/],
        },
    },
}

Run Code Online (Sandbox Code Playgroud)

Answer 7

jar*_*sup 0

为什么会出现警告？

我在监视模式下的 npm 包上运行 webpack，并在演示应用程序上测试它，该演示应用程序也在监视模式下使用 webpack，方法是使用npm link [package-name].

开发者的解决方法：

source-map-loader从webpack.config.js演示中删除。

归档时间：	5 年，1 月前
查看次数：	86499 次
最近记录：	2 年，3 月前