That's what polyfills are for, and they're slowly being replaced as specs are adopted by browser vendors. FF just activated ShadowDOM support in their nightly build. Webcomponents moved to NPM module imports, which cleared a big hurdle, and a modified HTML imports spec is still under discussion. So, the color chart doesn't really tell the whole story.
In answer to the fee increase, I already have, and, if anything, I'm turning away work on Polymer PWAs and headless projects.
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That's what polyfills are for, and they're slowly being replaced as specs are adopted by browser vendors. FF just activated ShadowDOM support in their nightly build. Webcomponents moved to NPM module imports, which cleared a big hurdle, and a modified HTML imports spec is still under discussion. So, the color chart doesn't really tell the whole story.
In answer to the fee increase, I already have, and, if anything, I'm turning away work on Polymer PWAs and headless projects.