MDN-Browser-Compatibility-Report-2020

Survey The goal of the survey was to identify which individual features and browsers contribute the most to web developer pain points around browser compatibility. The target audience for the results is browser vendors, and we wanted the findings to be as actionable as possible and make sense as input for prioritization. In short, the survey asked about: ● Overall satisfaction with the Web (on a scale) ● Satisfaction with browser compatibility (on a scale) ● Overall top pain point with browser compatibility (free-form text) ● Feature areas that cause issues (fixed options) ● Browsers/platforms that cause issues (fixed options)

See ​ appendix A​ for the full set of questions.

The survey was run on MDN in February/March 2020, and was also promoted on Twitter​ , ​ web.dev​ and ​ developers.google.com​ in that period. The ​ 3,236 complete responses​ are available in redacted form in a public spreadsheet. (The free-form responses were removed as they could and did occasionally include personally identifiable information.) Categorizing Responses The survey’s main free-form question “Overall, what is your top pain point with browser compatibility?” was categorized by hand and used to filter the results. Only 64% of the responses answered this question, and those 2000+ answers were categorized manually into 46 categories, up to 5 categories per answer. We used the first or most prominent issue as the first category. For example “I don't really like that chrome and firefox handles images inside flexbox differently” was categorized as Flexbox, Chrome and Firefox, with Flexbox taken to be the top issue.

See ​ appendix B​ for all categories and examples.

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