我一直被困在一个涉及Angular 6到8的怪异问题上(我从Angular 6开始并迁移到7,然后移植到8,然后认为这可能已经被较新的库解决了,发现我错了),并与ckeditor5-angular
模块和ckeditor5-classic-build编辑器的自定义版本。
唯一添加到自定义版本中的是对齐按钮的Alignment插件。
一切都完美地在开发模式下运行,没有任何错误..这是我问题的根源。在--prod
构建中,我得到了这个无法理解的堆栈跟踪,我无法在开发人员模式下对其进行复制:
zl/i<@https://v5.staging.amateurwriting.net/main-es2015.c0032bd3a584c0b5d808.js:1:342042
zl@https://v5.staging.amateurwriting.net/main-es2015.c0032bd3a584c0b5d808.js:1:342142
Vl@https://v5.staging.amateurwriting.net/main-es2015.c0032bd3a584c0b5d808.js:1:341944
jl/<@https://v5.staging.amateurwriting.net/main-es2015.c0032bd3a584c0b5d808.js:1:341872
change@https://v5.staging.amateurwriting.net/main-es2015.c0032bd3a584c0b5d808.js:1:201004
jl@https://v5.staging.amateurwriting.net/main-es2015.c0032bd3a584c0b5d808.js:1:341862
_initPlaceholder@https://v5.staging.amateurwriting.net/main-es2015.c0032bd3a584c0b5d808.js:1:344731
init@https://v5.staging.amateurwriting.net/main-es2015.c0032bd3a584c0b5d808.js:1:343575
create/</<@https://v5.staging.amateurwriting.net/main-es2015.c0032bd3a584c0b5d808.js:1:361312
invoke@https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1:43382
run@https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1:38884
A/<@https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1:49712
invokeTask@https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1:44000
runTask@https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1:39499
y@https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1:45945
invokeTask@https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1:45030
v@https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1:56978
b@https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1:57299
main-es2015.c0032bd3a584c0b5d808.js:1:968675
createEditor https://v5.staging.amateurwriting.net/main-es2015.c0032bd3a584c0b5d808.js:1
invoke https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1
run https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1
A https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1
invokeTask https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1
runTask https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1
y https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1
invokeTask https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1
v https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1
b https://v5.staging.amateurwriting.net/polyfills-es2015.5cb7d8167823e5b15eaf.js:1
我在Github上遇到了很多不同的问题,似乎它们可能是相关的,但是它们中的任何解决方案都不起作用。我已经将tsconfig.json设置为使用es6 / es2015(ckeditor5不支持es5,我也可以,我也不想支持它),并添加了allowJs: true
选项,如ckeditor5的问题,但是此堆栈跟踪永远不会改变,而且我也永远无法在开发人员模式下重现它。
我该怎么做才能找到问题的根源?有人看过吗?当我指定es6构建目标时,如何停止Angular产生es5工件?它仍在构建中..但是它们似乎没有在Firefox中加载,因此我可以确定它们不会引起我所看到的问题,但是我也可以确定它们将无法工作,因为ckeditor5仅适用于es6 +
tsconfig.json:
{
"compileOnSave": false,
"compilerOptions": {
"baseUrl": "./",
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"downlevelIteration": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"module": "esnext",
"moduleResolution": "node",
"importHelpers": true,
"target": "es2015",
"typeRoots": [
"node_modules/@types"
],
"lib": [
"es2018",
"dom"
]
}
}
polyfills.ts:
/**
* This file includes polyfills needed by Angular and is loaded before the app.
* You can add your own extra polyfills to this file.
*
* This file is divided into 2 sections:
* 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
* 2. Application imports. Files imported after ZoneJS that should be loaded before your main
* file.
*
* The current setup is for so-called "evergreen" browsers; the last versions of browsers that
* automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
* Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
*
* Learn more in https://angular.io/guide/browser-support
*/
/***************************************************************************************************
* BROWSER POLYFILLS
*/
/** IE10 and IE11 requires the following for NgClass support on SVG elements */
// import 'classlist.js'; // Run `npm install --save classlist.js`.
/**
* Web Animations `@angular/platform-browser/animations`
* Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
* Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).
*/
// import 'web-animations-js'; // Run `npm install --save web-animations-js`.
/**
* By default, zone.js will patch all possible macroTask and DomEvents
* user can disable parts of macroTask/DomEvents patch by setting following flags
* because those flags need to be set before `zone.js` being loaded, and webpack
* will put import in the top of bundle, so user need to create a separate file
* in this directory (for example: zone-flags.ts), and put the following flags
* into that file, and then add the following code before importing zone.js.
* import './zone-flags.ts';
*
* The flags allowed in zone-flags.ts are listed here.
*
* The following flags will work for all browsers.
*
* (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
* (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
* (window as any).__zone_symbol__UNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames
*
* in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
* with the following flag, it will bypass `zone.js` patch for IE/Edge
*
* (window as any).__Zone_enable_cross_context_check = true;
*
*/
/***************************************************************************************************
* Zone JS is required by default for Angular itself.
*/
import 'zone.js/dist/zone.js'; // Included with Angular CLI.
(window as any).__Zone_disable_toString = true; // Zone will not patch Function.prototype.toString
/***************************************************************************************************
* APPLICATION IMPORTS
*/
我重新运行--optimization=false
进行构建,尝试查看错误的根源,然后错误消失了。.因此,这似乎与uglifyjs有关,但不确定如何。
答案 0 :(得分:0)
发现CKEditor5在产品中不起作用的原因:
在angular.json中,您必须设置:
...
"optimization: true",
"buildOptimizer": false,
...
buildOptimizer重命名破坏CKEditor5的函数,方法是禁用它,使其在Angular 6,7,8中起作用。我猜CKEditor使用的是命名函数查找,在编译过程中缺少UglifyJS。 Angular已决定默认启用此选项。
但是请注意,这将es2015的prod构建的大小增加了270kb。
我已经测试并发现它可以解决Angular 6、7和8中的问题。
相关的Angular问题在这里:https://github.com/angular/angular-cli/issues/11439